diff --git a/README.md b/README.md
index 35fe55e..85f4c2b 100644
--- a/README.md
+++ b/README.md
@@ -10,3 +10,5 @@ from proxy server goes to WireGuard network.
 
 In local exit mode, the proxy is served on WireGuard network, and the traffic
 from WireGuard goes to local network.
+
+For detail usage, see <https://github.com/zhsj/wghttp/tree/master/docs>.