fix: added a real help message for the command 'help'

commands.py

@@ -4,7 +4,15 @@ def unknown(mud, command, id):
 
 
 def help(mud, id):
-    mud.send_message(id, "Here should be a list with commands")
+    mud.send_message(id, '''This are the currently available commands:
+    * say <message>: Says something to everyone in the room.
+    * go <exit>: Enters an exit.
+    * look: Gives a description of the room.
+    * open <exit> <room>: (Only available for the builders of the room) creates
+    an exit to another room.
+    * build <room> <return> <description>: Creates a room. The return param is
+    the name of an exit to come back to the current room.
+''')
 
 
 def say(mud, id, players, params):