Added example for server IP

Author: aeroaks

README.md

@@ -41,7 +41,7 @@ The API is simply methods and properties of the `WebsocketServer` class.
 
 The WebsocketServer takes two arguments: a `port` and a `hostname`.
 By default `localhost` is used. However if you want to be able and connect
-to the server from the network you need to pass `0.0.0.0` as hostname.
+to the server from the network you need to pass `0.0.0.0` as hostname. e.g., WebsocketServer(13254, '127.0.0.2') for custom IP.
 
 ###Properties
 
@@ -81,7 +81,7 @@ from websocket_server import WebsocketServer
 def new_client(client, server):
 	server.send_message_to_all("Hey all, a new client has joined us")
 
-server = WebsocketServer(13254)
+server = WebsocketServer(13254, host='127.0.0.1')
 server.set_fn_new_client(new_client)
 server.run_forever()
 ````