diff --git a/docs/README.md b/docs/README.md
index 2df73f2..93d2544 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -1,6 +1,4 @@
-<center>
-<img width="600" src="http://static.zybuluo.com/ZzzJoe/yflamvkjh2i7zn5qcp9wpj61/%E5%AF%92%E6%B2%A7.jpg" />
-</center>
+- [CS-Notes-PDF](https://github.com/sjsdfg/CS-Notes-PDF) </br>
 
 ## ✏️ CS-Notes-PDF
 
@@ -73,3 +71,8 @@
 - [88. 保护性的编写 readObject 方法.md](notes/88.%20保护性的编写%20readObject%20方法.md)</br>
 - [89. 对于实例控制，枚举类型优于 readResolve.md](notes/89.%20对于实例控制，枚举类型优于%20readResolve.md)</br>
 - [90. 考虑用序列化代理代替序列化实例.md](notes/90.%20考虑用序列化代理代替序列化实例.md)</br>
+
+## Give me a Favor
+<center>
+<img width="600" src="http://static.zybuluo.com/ZzzJoe/yflamvkjh2i7zn5qcp9wpj61/%E5%AF%92%E6%B2%A7.jpg" />
+</center>