added example echobot to readme

README.rst

@@ -52,6 +52,33 @@ Getting last messages sent
         print(message.body)
 
 
+Example Echobot
+===============
+
+.. code-block:: python
+
+    import fbchat
+    #subclass fbchat.Client and override required methods
+    class EchoBot(fbchat.Client): 
+
+        def __init__(self,email, password, debug=True, user_agent=None):            
+            fbchat.Client.__init__(self,email, password, debug, user_agent)
+
+        def on_message(self, mid, author_id, author_name, message, metadata):
+            self.markAsDelivered(author_id, mid) #mark delivered
+            self.markAsRead(author_id) #mark read
+
+            print("%s said: %s"%(author_id, message))
+
+            #if you are not the author, echo
+            if str(author_id) != str(self.uid):
+                self.send(author_id,message)
+    
+    bot=EchoBot("<email>", "<password>")
+    bot.listen()
+
+
+
 Authors
 =======