diff --git a/docs/chapter3/README.md b/docs/chapter3/project1.md
similarity index 97%
rename from docs/chapter3/README.md
rename to docs/chapter3/project1.md
index 08e26a8..07bffb6 100644
--- a/docs/chapter3/README.md
+++ b/docs/chapter3/project1.md
@@ -90,7 +90,7 @@
 
 **plot.py**：保存相关绘制函数
 
-
+[参考代码](https://github.com/datawhalechina/leedeeprl-notes/tree/master/codes/Q-learning)
 
 ## 备注