add information about how to get help

README.md

@@ -103,3 +103,14 @@ ERRO[0000] this is at error level!
 PASS
 ok  	github.com/weaveworks/promrus	0.011s
 ```
+
+## <a name="help"></a>Getting Help
+
+If you have any questions about, feedback for or problems with `promrus`:
+
+- Invite yourself to the <a href="https://weaveworks.github.io/community-slack/" target="_blank"> #weave-community </a> slack channel.
+- Ask a question on the <a href="https://weave-community.slack.com/messages/general/"> #weave-community</a> slack channel.
+- Send an email to <a href="mailto:weave-users@weave.works">weave-users@weave.works</a>
+- <a href="https://github.com/weaveworks/promrus/issues/new">File an issue.</a>
+
+Your feedback is always welcome!