add information about how to get help (#93)

README.md

@@ -2,3 +2,15 @@
 
 [![Circle CI](https://circleci.com/gh/weaveworks/common/tree/master.svg?style=shield)](https://circleci.com/gh/weaveworks/common/tree/master)
 [![Go Report Card](https://goreportcard.com/badge/github.com/weaveworks/common)](https://goreportcard.com/report/github.com/weaveworks/common)
+
+
+## <a name="help"></a>Getting Help
+
+If you have any questions about, feedback for or problems with `common`:
+
+- 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/common/issues/new">File an issue.</a>
+
+Your feedback is always welcome!