Add support for logging.

docs/logging.rst

@@ -0,0 +1,24 @@
+Setting Up Logging
+===================
+
+Newer version of *discord.py* have the capability of logging certain events via the `logging`_ python module.
+
+This is helpful if you want to see certain issues in *discord.py* or want to listen to events yourself.
+
+Setting up logging is fairly simple: ::
+
+    import discord
+    import logging
+
+    logger = logging.getLogger('discord')
+    logger.setLevel(logging.DEBUG)
+    handler = logging.FileHandler(filename='discord.log', encoding='utf-8', mode='w')
+    handler.setFormatter(logging.Formatter('%(asctime)s:%(levelname)s:%(name)s: %(message)s'))
+    logger.addHandler(handler)
+
+This would create a logger that writes to a file called ``discord.log``. This is recommended as there are a lot of events
+logged at a time and it would clog out the stdout of your program.
+
+For more information, check the documentation and tutorial of the `logging`_ module.
+
+.. _logging: https://docs.python.org/2/library/logging.html