Make FAQ use change_presence instead of change_status.

docs/faq.rst

@@ -94,11 +94,11 @@ General questions regarding library usage belong here.
 How do I set the "Playing" status?
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-There is a method for this under :class:`Client` called :meth:`Client.change_status`. The relevant aspect of this is its
+There is a method for this under :class:`Client` called :meth:`Client.change_presence`. The relevant aspect of this is its
 ``game`` keyword argument which takes in a :class:`Game` object. Putting both of these pieces of info together, you get the
 following: ::
 
-    await client.change_status(game=discord.Game(name='my game'))
+    await client.change_presence(game=discord.Game(name='my game'))
 
 How do I send a message to a specific channel?
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~