Contributors are welcome on the mailing list

Author: michaelklishin

README.md

@@ -35,6 +35,8 @@
 
 See [CONTRIBUTING.md](./CONTRIBUTING.md) and our [development process overview](https://rabbitmq.com/github.html).
 
+Questions about contributing, internals and so on are very welcome on the [mailing list](https://groups.google.com/forum/#!forum/rabbitmq-users).
+
 
 ## Licensing