[docs] suggest presence in constructor instead of change_presence

docs/faq.rst

@@ -85,8 +85,15 @@ in the repository.
 How do I set the "Playing" status?
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-There is a method for this under :class:`Client` called :meth:`Client.change_presence`.
-The relevant aspect of this is its ``activity`` keyword argument which takes in an :class:`Activity` object.
+The ``activity`` keyword argument may be passed in the :class:`Client` constructor or :meth:`Client.change_presence`, given an :class:`Activity` object.
+
+The constructor may be used for static activities, while :meth:`Client.change_presence` may be used to update the activity at runtime.
+
+.. warning::
+
+    It is highly discouraged to use :meth:`Client.change_presence` or API calls in :func:`on_ready` as this event may be called many times while running, not just once.
+
+    There is a high chance of disconnecting if presences are changed right after connecting.
 
 The status type (playing, listening, streaming, watching) can be set using the :class:`ActivityType` enum.
 For memory optimisation purposes, some activities are offered in slimmed down versions:
@@ -96,11 +103,11 @@ For memory optimisation purposes, some activities are offered in slimmed down ve
 
 Putting both of these pieces of info together, you get the following: ::
 
-    await client.change_presence(activity=discord.Game(name='my game'))
+    client = discord.Client(activity=discord.Game(name='my game'))
 
     # or, for watching:
     activity = discord.Activity(name='my activity', type=discord.ActivityType.watching)
-    await client.change_presence(activity=activity)
+    client = discord.Client(activity=activity)
 
 How do I send a message to a specific channel?
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