diff --git a/README.md b/README.md
index 71f5518..83aed82 100644
--- a/README.md
+++ b/README.md
@@ -5,4 +5,30 @@ two features:
 
 1. receive data through tcp and forward it through websocket connection
 
-2. receive data through websocket and forward it to upstream tcp port
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+2. receive data through websocket and forward it to upstream tcp port
+
+
+usage example
+=====
+
+### proxy ssh connection ###
+
+on server side, listen for websocket connection and forward it to ssh port, example config
+
+    proxy_config:
+        - listen: ws://127.0.0.1:2222/p1
+          remote: tcp://127.0.0.1:22
+
+start server side proxy by `wstunnel -c server.yaml`
+
+on client side, forward the connection through websocket, example config
+
+    proxy_config:
+        -  listen: tcp://127.0.0.1:9001
+           remote: ws://127.0.0.1:2222/p1
+
+start client side proxy by `wstunnel -c client.yaml`
+
+now, you can connect to ssh server by `ssh -p 9001 127.0.0.1`, your ssh connection hide in websocket
+
+the websocket can be proxied by nginx also
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