Modify README.md

Agnel-Wang · Agnel-Wang · commit cae64c9ee6b3 · 2023-04-25T22:01:39.000+08:00
diff --git a/README.md b/README.md
@@ -1 +1,7 @@
-see [unitree-z1-docs](http://dev-z1.unitree.com)
+Documentation:
+
+[unitree-z1-docs-en](http://dev-z1.unitree.com)
+
+[unitree-z1-docs-cn](http://dev-z1.cn.unitree.com)
+
+
