README.md in hipchat-api-1.0.3 vs README.md in hipchat-api-1.0.4

@@ -36,10 +36,10 @@
 ```ruby
 rooms_create(name, owner_user_id, privacy = 'public', topic = '', guest_access = 0)
 rooms_delete(room_id)
 rooms_list	
 rooms_history(room_id, date, timezone)	
-rooms_message(room_id, from, message, notify = 0, color = 'yellow')  
+rooms_message(room_id, from, message, notify = 0, color = 'yellow', message_format = 'html')  
 rooms_show(room_id)  
 ```
   
 * User-related methods
 
\ No newline at end of file