Bug fixes and improvements (#1252)

* Bug fixes

* Fix the landing page of zh-hant version

* Bug fixes and add an Q&A for chapter_data_structure

* Update the mindmap for zh-hant version

zh-hant/docs/chapter_appendix/terminology.md

@@ -7,7 +7,7 @@
 
 <p align="center"> 表 <id> &nbsp; 資料結構與演算法的重要名詞 </p>
 
-| English                        | 简体中文       | 繁体中文       |
+| English                        | 簡體中文       | 繁體中文       |
 | ------------------------------ | -------------- | -------------- |
 | algorithm                      | 算法           | 演算法         |
 | data structure                 | 数据结构       | 資料結構       |

zh-hant/docs/index.html

@@ -74,7 +74,7 @@
     <!-- heading -->
     <div class="heading-div">
         <img style="height: min(9vh, 12vw);"
-            src="https://readme-typing-svg.demolab.com/?font=Noto+Sans+SC&weight=400&duration=3500&pause=2000&color=FFF&center=true&vCenter=true&random=false&width=200&lines=Hello%2C+%E7%AE%97%E6%B3%95+!"
+            src="https://readme-typing-svg.demolab.com/?font=Noto+Sans+SC&weight=400&duration=3500&pause=2000&color=FFF&center=true&vCenter=true&random=false&width=200&lines=Hello%2C+%E6%BC%94%E7%AE%97%E6%B3%95+!"
             alt="" />
         <div style="pointer-events: auto;">
             <p style="margin-top: max(-1vh, -2vw); margin-bottom: min(2vh, 3.5vw);">
@@ -140,11 +140,11 @@
             <!-- ipad height = 280.6mm -->
             <!-- iphone height = 160.7mm -->
             <div class="media-block">
-                <a href="chapter_paperbook/">
+                <a href="/chapter_paperbook/">
                     <div style="height: 8.17%;"></div>
                     <img class="device-on-hover" style="height: 66.83%;" src="../assets/hero/cover_render.png" alt="Cover">
                     <div class="text-button">
-                        <span>獲取紙質書</span>
+                        <span>紙質書（簡中）</span>
                         <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512">
                             <path
                                 d="M278.6 233.4c12.5 12.5 12.5 32.8 0 45.3l-160 160c-12.5 12.5-32.8 12.5-45.3 0s-12.5-32.8 0-45.3L210.7 256 73.4 118.6c-12.5-12.5-12.5-32.8 0-45.3s32.8-12.5 45.3 0l160 160z" />
@@ -170,7 +170,7 @@
                 <a href="https://github.com/krahets/hello-algo/releases">
                     <img class="device-on-hover" style="height: 75%;" src="../assets/hero/pdf_ipad.png" alt="">
                     <div class="text-button">
-                        <span>下載 PDF</span>
+                        <span>PDF（簡中）</span>
                         <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512">
                             <path
                                 d="M278.6 233.4c12.5 12.5 12.5 32.8 0 45.3l-160 160c-12.5 12.5-32.8 12.5-45.3 0s-12.5-32.8 0-45.3L210.7 256 73.4 118.6c-12.5-12.5-12.5-32.8 0-45.3s32.8-12.5 45.3 0l160 160z" />