diff --git a/docs/_sidebar.md b/docs/_sidebar.md
index 307ca47b..b7cf35a8 100644
--- a/docs/_sidebar.md
+++ b/docs/_sidebar.md
@@ -1,4 +1,5 @@
 - Getting started
 
-  - [README](README.md)
-  - [guide](guide.md)
\ No newline at end of file
+  - [README](https://github.com/CyC2018/CS-Notes/blob/master/docs/README.md)
+  - [guide](guide.md)
+