From e2664982824e7367d81d68ebe880cf894fa4b918 Mon Sep 17 00:00:00 2001
From: Alex Chi Z <iskyzh@gmail.com>
Date: Tue, 23 Jan 2024 15:12:01 +0800
Subject: [PATCH] new banner

Signed-off-by: Alex Chi Z <iskyzh@gmail.com>
---
 .../src/lsm-tutorial/00-full-overview.svg     |   4 +-
 .../src/lsm-tutorial/00-lsm-read-flow.svg     |   4 +-
 .../src/lsm-tutorial/00-lsm-write-flow.svg    |   4 +-
 .../src/lsm-tutorial/week1-01-frozen.svg      |   4 +-
 .../src/lsm-tutorial/week1-01-overview.svg    |   4 +-
 .../src/lsm-tutorial/week1-01-single.svg      |   4 +-
 .../src/lsm-tutorial/week1-02-overview.svg    |   4 +-
 .../src/lsm-tutorial/week1-03-overview.svg    |   4 +-
 .../src/lsm-tutorial/week1-04-overview.svg    |   4 +-
 .../src/lsm-tutorial/week1-05-overview.svg    |   4 +-
 .../src/lsm-tutorial/week1-07-overview.svg    |   4 +-
 .../src/lsm-tutorial/week1-overview.svg       |   4 +-
 .../src/lsm-tutorial/week2-00-leveled.svg     |   4 +-
 .../src/lsm-tutorial/week2-00-tiered.svg      |   4 +-
 .../lsm-tutorial/week2-00-two-extremes-1.svg  |   4 +-
 .../lsm-tutorial/week2-00-two-extremes-2.svg  |   4 +-
 .../src/lsm-tutorial/week2-01-overview.svg    |   4 +-
 .../src/lsm-tutorial/week2-04-leveled.svg     | 195 ++++++++++++++++++
 .../src/lsm-tutorial/week2-05-overview.svg    |   4 +-
 .../src/lsm-tutorial/week2-06-overview.svg    |   4 +-
 .../src/lsm-tutorial/week2-overview.svg       |   4 +-
 mini-lsm-book/src/week2-02-simple.md          |   4 +-
 mini-lsm-book/src/week2-03-tiered.md          |   2 +-
 mini-lsm-book/src/week2-04-leveled.md         |   2 +-
 24 files changed, 239 insertions(+), 44 deletions(-)
 create mode 100644 mini-lsm-book/src/lsm-tutorial/week2-04-leveled.svg

diff --git a/mini-lsm-book/src/lsm-tutorial/00-full-overview.svg b/mini-lsm-book/src/lsm-tutorial/00-full-overview.svg
index 3ecd82b..0e6bb12 100644
--- a/mini-lsm-book/src/lsm-tutorial/00-full-overview.svg
+++ b/mini-lsm-book/src/lsm-tutorial/00-full-overview.svg
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
-<svg xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:xl="http://www.w3.org/1999/xlink" viewBox="-5 170 704 599" width="704" height="599">
+<svg xmlns:xl="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/" version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="-5 170 704 599" width="704" height="599">
   <defs>
     <marker orient="auto" overflow="visible" markerUnits="strokeWidth" id="FilledArrow_Marker" stroke-linejoin="miter" stroke-miterlimit="10" viewBox="-1 -4 10 8" markerWidth="10" markerHeight="8" color="black">
       <g>
@@ -8,7 +8,7 @@
       </g>
     </marker>
   </defs>
-  <g id="00-full-overview" fill-opacity="1" stroke-opacity="1" stroke="none" fill="none" stroke-dasharray="none">
+  <g id="00-full-overview" stroke-opacity="1" fill-opacity="1" stroke-dasharray="none" stroke="none" fill="none">
     <title>00-full-overview</title>
     <rect fill="white" x="-5" y="170" width="704" height="599"/>
     <g id="00-full-overview_Layer_1">
diff --git a/mini-lsm-book/src/lsm-tutorial/00-lsm-read-flow.svg b/mini-lsm-book/src/lsm-tutorial/00-lsm-read-flow.svg
index 53ac57c..f319924 100644
--- a/mini-lsm-book/src/lsm-tutorial/00-lsm-read-flow.svg
+++ b/mini-lsm-book/src/lsm-tutorial/00-lsm-read-flow.svg
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
-<svg xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:xl="http://www.w3.org/1999/xlink" viewBox="6 194 693 361" width="693" height="361">
+<svg xmlns:xl="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/" version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="6 194 693 361" width="693" height="361">
   <defs>
     <marker orient="auto" overflow="visible" markerUnits="strokeWidth" id="FilledArrow_Marker" stroke-linejoin="miter" stroke-miterlimit="10" viewBox="-1 -4 10 8" markerWidth="10" markerHeight="8" color="black">
       <g>
@@ -18,7 +18,7 @@
       </g>
     </marker>
   </defs>
-  <g id="00-lsm-read-flow" fill-opacity="1" stroke-opacity="1" stroke="none" fill="none" stroke-dasharray="none">
+  <g id="00-lsm-read-flow" stroke-opacity="1" fill-opacity="1" stroke-dasharray="none" stroke="none" fill="none">
     <title>00-lsm-read-flow</title>
     <rect fill="white" x="6" y="194" width="693" height="361"/>
     <g id="00-lsm-read-flow_Layer_1">
diff --git a/mini-lsm-book/src/lsm-tutorial/00-lsm-write-flow.svg b/mini-lsm-book/src/lsm-tutorial/00-lsm-write-flow.svg
index 4820e5a..e627165 100644
--- a/mini-lsm-book/src/lsm-tutorial/00-lsm-write-flow.svg
+++ b/mini-lsm-book/src/lsm-tutorial/00-lsm-write-flow.svg
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
-<svg xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:xl="http://www.w3.org/1999/xlink" viewBox="6 245 693 273" width="693" height="273">
+<svg xmlns:xl="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/" version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="6 245 693 273" width="693" height="273">
   <defs>
     <marker orient="auto" overflow="visible" markerUnits="strokeWidth" id="FilledArrow_Marker" stroke-linejoin="miter" stroke-miterlimit="10" viewBox="-1 -4 10 8" markerWidth="10" markerHeight="8" color="black">
       <g>
@@ -13,7 +13,7 @@
       </g>
     </marker>
   </defs>
-  <g id="00-lsm-write-flow" fill-opacity="1" stroke-opacity="1" stroke="none" fill="none" stroke-dasharray="none">
+  <g id="00-lsm-write-flow" stroke-opacity="1" fill-opacity="1" stroke-dasharray="none" stroke="none" fill="none">
     <title>00-lsm-write-flow</title>
     <rect fill="white" x="6" y="245" width="693" height="273"/>
     <g id="00-lsm-write-flow_Layer_1">
diff --git a/mini-lsm-book/src/lsm-tutorial/week1-01-frozen.svg b/mini-lsm-book/src/lsm-tutorial/week1-01-frozen.svg
index e34dacd..582b1fd 100644
--- a/mini-lsm-book/src/lsm-tutorial/week1-01-frozen.svg
+++ b/mini-lsm-book/src/lsm-tutorial/week1-01-frozen.svg
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
-<svg xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:xl="http://www.w3.org/1999/xlink" viewBox="6 214 693 135" width="693" height="135">
+<svg xmlns:xl="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/" version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="6 214 693 135" width="693" height="135">
   <defs>
     <marker orient="auto" overflow="visible" markerUnits="strokeWidth" id="FilledArrow_Marker" stroke-linejoin="miter" stroke-miterlimit="10" viewBox="-1 -4 10 8" markerWidth="10" markerHeight="8" color="black">
       <g>
@@ -13,7 +13,7 @@
       </g>
     </marker>
   </defs>
-  <g id="week1-01-frozen" fill-opacity="1" stroke-opacity="1" stroke="none" fill="none" stroke-dasharray="none">
+  <g id="week1-01-frozen" stroke-opacity="1" fill-opacity="1" stroke-dasharray="none" stroke="none" fill="none">
     <title>week1-01-frozen</title>
     <rect fill="white" x="6" y="214" width="693" height="135"/>
     <g id="week1-01-frozen_Layer_1">
diff --git a/mini-lsm-book/src/lsm-tutorial/week1-01-overview.svg b/mini-lsm-book/src/lsm-tutorial/week1-01-overview.svg
index 6b23672..118d76b 100644
--- a/mini-lsm-book/src/lsm-tutorial/week1-01-overview.svg
+++ b/mini-lsm-book/src/lsm-tutorial/week1-01-overview.svg
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
-<svg xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:xl="http://www.w3.org/1999/xlink" viewBox="6 213 693 136" width="693" height="136">
+<svg xmlns:xl="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/" version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="6 213 693 136" width="693" height="136">
   <defs>
     <marker orient="auto" overflow="visible" markerUnits="strokeWidth" id="FilledArrow_Marker" stroke-linejoin="miter" stroke-miterlimit="10" viewBox="-1 -4 10 8" markerWidth="10" markerHeight="8" color="black">
       <g>
@@ -8,7 +8,7 @@
       </g>
     </marker>
   </defs>
-  <g id="week1-01-overview" fill-opacity="1" stroke-opacity="1" stroke="none" fill="none" stroke-dasharray="none">
+  <g id="week1-01-overview" stroke-opacity="1" fill-opacity="1" stroke-dasharray="none" stroke="none" fill="none">
     <title>week1-01-overview</title>
     <rect fill="white" x="6" y="213" width="693" height="136"/>
     <g id="week1-01-overview_Layer_1">
diff --git a/mini-lsm-book/src/lsm-tutorial/week1-01-single.svg b/mini-lsm-book/src/lsm-tutorial/week1-01-single.svg
index 23308dd..93785da 100644
--- a/mini-lsm-book/src/lsm-tutorial/week1-01-single.svg
+++ b/mini-lsm-book/src/lsm-tutorial/week1-01-single.svg
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
-<svg xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:xl="http://www.w3.org/1999/xlink" viewBox="6 245 693 104" width="693" height="104">
+<svg xmlns:xl="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/" version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="6 245 693 104" width="693" height="104">
   <defs>
     <marker orient="auto" overflow="visible" markerUnits="strokeWidth" id="FilledArrow_Marker" stroke-linejoin="miter" stroke-miterlimit="10" viewBox="-1 -4 10 8" markerWidth="10" markerHeight="8" color="black">
       <g>
@@ -8,7 +8,7 @@
       </g>
     </marker>
   </defs>
-  <g id="week1-01-single" fill-opacity="1" stroke-opacity="1" stroke="none" fill="none" stroke-dasharray="none">
+  <g id="week1-01-single" stroke-opacity="1" fill-opacity="1" stroke-dasharray="none" stroke="none" fill="none">
     <title>week1-01-single</title>
     <rect fill="white" x="6" y="245" width="693" height="104"/>
     <g id="week1-01-single_Layer_1">
diff --git a/mini-lsm-book/src/lsm-tutorial/week1-02-overview.svg b/mini-lsm-book/src/lsm-tutorial/week1-02-overview.svg
index 4ffddfc..71b2b2e 100644
--- a/mini-lsm-book/src/lsm-tutorial/week1-02-overview.svg
+++ b/mini-lsm-book/src/lsm-tutorial/week1-02-overview.svg
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
-<svg xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:xl="http://www.w3.org/1999/xlink" viewBox="6 213 693 136" width="693" height="136">
+<svg xmlns:xl="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/" version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="6 213 693 136" width="693" height="136">
   <defs>
     <marker orient="auto" overflow="visible" markerUnits="strokeWidth" id="FilledArrow_Marker" stroke-linejoin="miter" stroke-miterlimit="10" viewBox="-1 -4 10 8" markerWidth="10" markerHeight="8" color="black">
       <g>
@@ -8,7 +8,7 @@
       </g>
     </marker>
   </defs>
-  <g id="week1-02-overview" fill-opacity="1" stroke-opacity="1" stroke="none" fill="none" stroke-dasharray="none">
+  <g id="week1-02-overview" stroke-opacity="1" fill-opacity="1" stroke-dasharray="none" stroke="none" fill="none">
     <title>week1-02-overview</title>
     <rect fill="white" x="6" y="213" width="693" height="136"/>
     <g id="week1-02-overview_Layer_1">
diff --git a/mini-lsm-book/src/lsm-tutorial/week1-03-overview.svg b/mini-lsm-book/src/lsm-tutorial/week1-03-overview.svg
index 6bc9d54..247b78f 100644
--- a/mini-lsm-book/src/lsm-tutorial/week1-03-overview.svg
+++ b/mini-lsm-book/src/lsm-tutorial/week1-03-overview.svg
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
-<svg xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:xl="http://www.w3.org/1999/xlink" viewBox="-5 245 704 524" width="704" height="524">
+<svg xmlns:xl="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/" version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="-5 245 704 524" width="704" height="524">
   <defs>
     <marker orient="auto" overflow="visible" markerUnits="strokeWidth" id="FilledArrow_Marker" stroke-linejoin="miter" stroke-miterlimit="10" viewBox="-1 -4 10 8" markerWidth="10" markerHeight="8" color="black">
       <g>
@@ -8,7 +8,7 @@
       </g>
     </marker>
   </defs>
-  <g id="week1-03-overview" fill-opacity="1" stroke-opacity="1" stroke="none" fill="none" stroke-dasharray="none">
+  <g id="week1-03-overview" stroke-opacity="1" fill-opacity="1" stroke-dasharray="none" stroke="none" fill="none">
     <title>week1-03-overview</title>
     <rect fill="white" x="-5" y="245" width="704" height="524"/>
     <g id="week1-03-overview_Layer_1">
diff --git a/mini-lsm-book/src/lsm-tutorial/week1-04-overview.svg b/mini-lsm-book/src/lsm-tutorial/week1-04-overview.svg
index d9f1680..69fdac4 100644
--- a/mini-lsm-book/src/lsm-tutorial/week1-04-overview.svg
+++ b/mini-lsm-book/src/lsm-tutorial/week1-04-overview.svg
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
-<svg xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:xl="http://www.w3.org/1999/xlink" viewBox="6 245 693 480" width="693" height="480">
+<svg xmlns:xl="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/" version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="6 245 693 480" width="693" height="480">
   <defs>
     <marker orient="auto" overflow="visible" markerUnits="strokeWidth" id="FilledArrow_Marker" stroke-linejoin="miter" stroke-miterlimit="10" viewBox="-1 -4 10 8" markerWidth="10" markerHeight="8" color="black">
       <g>
@@ -8,7 +8,7 @@
       </g>
     </marker>
   </defs>
-  <g id="week1-04-overview" fill-opacity="1" stroke-opacity="1" stroke="none" fill="none" stroke-dasharray="none">
+  <g id="week1-04-overview" stroke-opacity="1" fill-opacity="1" stroke-dasharray="none" stroke="none" fill="none">
     <title>week1-04-overview</title>
     <rect fill="white" x="6" y="245" width="693" height="480"/>
     <g id="week1-04-overview_Layer_1">
diff --git a/mini-lsm-book/src/lsm-tutorial/week1-05-overview.svg b/mini-lsm-book/src/lsm-tutorial/week1-05-overview.svg
index a51f9e2..935f21a 100644
--- a/mini-lsm-book/src/lsm-tutorial/week1-05-overview.svg
+++ b/mini-lsm-book/src/lsm-tutorial/week1-05-overview.svg
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
-<svg xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:xl="http://www.w3.org/1999/xlink" viewBox="6 170 693 236" width="693" height="236">
+<svg xmlns:xl="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/" version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="6 170 693 236" width="693" height="236">
   <defs>
     <marker orient="auto" overflow="visible" markerUnits="strokeWidth" id="FilledArrow_Marker" stroke-linejoin="miter" stroke-miterlimit="10" viewBox="-1 -4 10 8" markerWidth="10" markerHeight="8" color="black">
       <g>
@@ -8,7 +8,7 @@
       </g>
     </marker>
   </defs>
-  <g id="week1-05-overview" fill-opacity="1" stroke-opacity="1" stroke="none" fill="none" stroke-dasharray="none">
+  <g id="week1-05-overview" stroke-opacity="1" fill-opacity="1" stroke-dasharray="none" stroke="none" fill="none">
     <title>week1-05-overview</title>
     <rect fill="white" x="6" y="170" width="693" height="236"/>
     <g id="week1-05-overview_Layer_1">
diff --git a/mini-lsm-book/src/lsm-tutorial/week1-07-overview.svg b/mini-lsm-book/src/lsm-tutorial/week1-07-overview.svg
index eac92c9..85fd8f7 100644
--- a/mini-lsm-book/src/lsm-tutorial/week1-07-overview.svg
+++ b/mini-lsm-book/src/lsm-tutorial/week1-07-overview.svg
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
-<svg xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:xl="http://www.w3.org/1999/xlink" viewBox="-5 461 784 308" width="784" height="308">
+<svg xmlns:xl="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/" version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="-5 461 784 308" width="784" height="308">
   <defs>
     <marker orient="auto" overflow="visible" markerUnits="strokeWidth" id="FilledArrow_Marker" stroke-linejoin="miter" stroke-miterlimit="10" viewBox="-1 -4 10 8" markerWidth="10" markerHeight="8" color="#7f8080">
       <g>
@@ -8,7 +8,7 @@
       </g>
     </marker>
   </defs>
-  <g id="week1-07-overview" fill-opacity="1" stroke-opacity="1" stroke="none" fill="none" stroke-dasharray="none">
+  <g id="week1-07-overview" stroke-opacity="1" fill-opacity="1" stroke-dasharray="none" stroke="none" fill="none">
     <title>week1-07-overview</title>
     <rect fill="white" x="-5" y="461" width="784" height="308"/>
     <g id="week1-07-overview_Layer_1">
diff --git a/mini-lsm-book/src/lsm-tutorial/week1-overview.svg b/mini-lsm-book/src/lsm-tutorial/week1-overview.svg
index a6caf06..9995e5c 100644
--- a/mini-lsm-book/src/lsm-tutorial/week1-overview.svg
+++ b/mini-lsm-book/src/lsm-tutorial/week1-overview.svg
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
-<svg xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:xl="http://www.w3.org/1999/xlink" viewBox="-5 170 784 599" width="784" height="599">
+<svg xmlns:xl="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/" version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="-5 170 784 599" width="784" height="599">
   <defs>
     <marker orient="auto" overflow="visible" markerUnits="strokeWidth" id="FilledArrow_Marker" stroke-linejoin="miter" stroke-miterlimit="10" viewBox="-1 -4 10 8" markerWidth="10" markerHeight="8" color="black">
       <g>
@@ -13,7 +13,7 @@
       </g>
     </marker>
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+        <text transform="translate(90.208 573.526)" fill="black">
+          <tspan font-family="Helvetica Neue" font-size="16" fill="black" x="1278977e-18" y="15">L2</tspan>
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+  </g>
+</svg>
diff --git a/mini-lsm-book/src/lsm-tutorial/week2-05-overview.svg b/mini-lsm-book/src/lsm-tutorial/week2-05-overview.svg
index d8f942f..ed0f7f3 100644
--- a/mini-lsm-book/src/lsm-tutorial/week2-05-overview.svg
+++ b/mini-lsm-book/src/lsm-tutorial/week2-05-overview.svg
@@ -1,6 +1,6 @@
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@@ -13,7 +13,7 @@
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+  <g id="week2-05-overview" stroke-opacity="1" fill-opacity="1" stroke-dasharray="none" stroke="none" fill="none">
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diff --git a/mini-lsm-book/src/lsm-tutorial/week2-06-overview.svg b/mini-lsm-book/src/lsm-tutorial/week2-06-overview.svg
index 8fdd0ec..473f74b 100644
--- a/mini-lsm-book/src/lsm-tutorial/week2-06-overview.svg
+++ b/mini-lsm-book/src/lsm-tutorial/week2-06-overview.svg
@@ -1,6 +1,6 @@
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+  <g id="week2-06-overview" stroke-opacity="1" fill-opacity="1" stroke-dasharray="none" stroke="none" fill="none">
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diff --git a/mini-lsm-book/src/lsm-tutorial/week2-overview.svg b/mini-lsm-book/src/lsm-tutorial/week2-overview.svg
index e7cd021..684d5b2 100644
--- a/mini-lsm-book/src/lsm-tutorial/week2-overview.svg
+++ b/mini-lsm-book/src/lsm-tutorial/week2-overview.svg
@@ -1,6 +1,6 @@
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diff --git a/mini-lsm-book/src/week2-02-simple.md b/mini-lsm-book/src/week2-02-simple.md
index 0c9185e..fbeadd4 100644
--- a/mini-lsm-book/src/week2-02-simple.md
+++ b/mini-lsm-book/src/week2-02-simple.md
@@ -1,13 +1,13 @@
 # Simple Compaction Strategy
 
-![Chapter Overview](./lsm-tutorial/week2-01-overview.svg)
+![Chapter Overview](./lsm-tutorial/week2-00-leveled.svg)
 
 In this chapter, you will:
 
 * Implement a simple leveled compaction strategy and simulate it on the compaction simulator.
 * Start compaction as a background task and implement a compaction trigger in the system.
 
-## Task 1: Simple Level Compaction + Compaction Simulation
+## Task 1: Simple Leveled Compaction + Compaction Simulation
 
 In this chapter, we are going to implement our first compaction strategy -- simple leveled compaction. In this task, you will need to modify:
 
diff --git a/mini-lsm-book/src/week2-03-tiered.md b/mini-lsm-book/src/week2-03-tiered.md
index 6bd4514..c8c127e 100644
--- a/mini-lsm-book/src/week2-03-tiered.md
+++ b/mini-lsm-book/src/week2-03-tiered.md
@@ -1,6 +1,6 @@
 # Tiered Compaction Strategy
 
-![Chapter Overview](./lsm-tutorial/week2-01-overview.svg)
+![Chapter Overview](./lsm-tutorial/week2-00-tiered.svg)
 
 In this chapter, you will:
 
diff --git a/mini-lsm-book/src/week2-04-leveled.md b/mini-lsm-book/src/week2-04-leveled.md
index 3755f1d..8a68f87 100644
--- a/mini-lsm-book/src/week2-04-leveled.md
+++ b/mini-lsm-book/src/week2-04-leveled.md
@@ -1,6 +1,6 @@
 # Leveled Compaction Strategy
 
-![Chapter Overview](./lsm-tutorial/week2-01-overview.svg)
+![Chapter Overview](./lsm-tutorial/week2-04-leveled.svg)
 
 In this chapter, you will: