Update ISSUE_TEMPLATE.md

Added general support information to the issue template.

Signed-off-by: Trevor Sullivan <trevor.sullivan@clusterhq.com>

.github/ISSUE_TEMPLATE.md

@@ -12,6 +12,17 @@ will, however, reopen it if you later provide the information.
 For more information about reporting issues, see
 https://github.com/docker/docker/blob/master/CONTRIBUTING.md#reporting-other-issues
 
+---------------------------------------------------
+GENERAL SUPPORT INFORMATION
+---------------------------------------------------
+
+The GitHub issue tracker is for bug reports and feature requests.
+General support can be found at the following locations:
+
+- Docker Support Forums - https://forums.docker.com
+- IRC - irc.freenode.net #docker channel
+- Post a question on StackOverflow, using the Docker tag
+
 ---------------------------------------------------
 BUG REPORT INFORMATION
 ---------------------------------------------------