Add documentation about getting support

SUPPORT.rst

@@ -0,0 +1,17 @@
+Getting support
+===============
+
+Please refer to our documentation before asking questions:
+
+http://django-wiki.readthedocs.io/
+
+**DO NOT USE GITHUB FOR SUPPORT INQUIRIES! USE IRC OR MAILING LIST!**
+
+Django-wiki is community based, please try to be active. If you want help, plan to
+give help, too. For instance, if you join IRC, then stay around and help others.
+
+Please use our IRC or mailing list (google group) for getting in touch on development and support. Please do not email developers asking for personal support.
+
+ * ``#django-wiki`` on irc.freenode.net
+ * `django-wiki@googlegroups.com <https://groups.google.com/forum/#!forum/django-wiki>`__
+