diff --git a/Course/README.md b/Course/README.md
index 57d9fff..67b44ab 100644
--- a/Course/README.md
+++ b/Course/README.md
@@ -1,6 +1,6 @@
 # 教程类
 
-序号 | 链接
-:---:|--------
- 01  | [在AndroidStudio中使用PlantUML](https://github.com/GcsSloop/AndroidNote/blob/master/Course/HowToUsePlantUMLInAS.md)
- 02  | [优雅的发布Android开源库(论JitPack的优越性)](https://github.com/GcsSloop/AndroidNote/blob/master/Course/ReleaseLibraryByJitPack.md)
+**教程类** |
+:---: |
+<a href="https://github.com/GcsSloop/AndroidNote/blob/master/Course/HowToUsePlantUMLInAS.md" target="_blank"><img src="http://ww4.sinaimg.cn/large/005Xtdi2jw1f2iwjcu945j30rs0dw41f.jpg" width=300 /></a> |
+<a href="https://github.com/GcsSloop/AndroidNote/blob/master/Course/ReleaseLibraryByJitPack.md" target="_blank"><img src="http://ww2.sinaimg.cn/large/005Xtdi2jw1f2iwkgdkugj30rs0dwgoi.jpg" width=300 /></a> |