Add StackOverflow link to SUPPORT guidelines

SUPPORT.rst

@@ -5,13 +5,13 @@ 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!**
+* **DO NOT USE GITHUB FOR SUPPORT INQUIRIES!**
+* **DO NOT EMAIL DEVELOPERS ASKING FOR SUPPORT!**
 
-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.
+Django-wiki is community based. If you want support, then consider offering support to others. 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>`__
+Please use your preferred support channels for getting answers to your questions.
 
+* `StackOverflow tag:django-wiki <https://stackoverflow.com/tags/django-wiki>`__
+* ``#django-wiki`` on irc.freenode.net
+* `django-wiki@googlegroups.com <https://groups.google.com/forum/#!forum/django-wiki>`__