diff --git a/README.md b/README.md
index c8f0112..e33f7df 100644
--- a/README.md
+++ b/README.md
@@ -2,4 +2,11 @@ documentation
 
 [unitree-z1-docs-english](http://dev-z1.unitree.com)
 
-[unitree-z1-docs-chinese](http://dev-z1.cn.unitree.com)
\ No newline at end of file
+[unitree-z1-docs-chinese](http://dev-z1.cn.unitree.com)
+Documentation:
+
+[unitree-z1-docs-en](http://dev-z1.unitree.com)
+
+[unitree-z1-docs-cn](http://dev-z1.cn.unitree.com)
+
+