docs: update readme chunk intro gif

Author: shellRaining

README.md

@@ -35,7 +35,7 @@ One picture to understand what these mods do
 ### chunk
 
 <a href='./docs/en/chunk.md#chunk_example1'>
-<img width="500" alt="image" src="https://raw.githubusercontent.com/shellRaining/img/main/2303/08_hlchunk8.gif">
+<img width="500" alt="image" src="https://raw.githubusercontent.com/shellRaining/img/main/2406/hlchunk_v121.gif">
 </a>
 
 ### indent

README.zh-CN.md

@@ -35,7 +35,7 @@
 ### chunk
 
 <a href='./docs/zh_CN/chunk.md#chunk_gif'>
-<img width="500" alt="image" src="https://raw.githubusercontent.com/shellRaining/img/main/2303/08_hlchunk8.gif">
+<img width="500" alt="image" src="https://raw.githubusercontent.com/shellRaining/img/main/2406/hlchunk_v121.gif">
 </a>
 
 ### indent