Update CONTRIBUTING.md

CONTRIBUTING.md

@@ -1,10 +1,16 @@
+# Getting set up
+
+To get your development environment set up, check out our wiki: 
+
+https://github.com/papercups-io/papercups/wiki/Development-Setup
+
 # Creating a PR
 
 Just create a new pull request if you want to make an update. We would prefer that you open an issue describing the update first if possible!
 
 For now, please request Alex (@reichert621) to review.
 
-If you want to speak to us before doing lots of work, just email [email protected] - we're very responsive and friendly!
+If you want to speak to us before doing lots of work, just email [email protected] — we're very responsive and friendly!
 
 # Issues
 
@@ -13,3 +19,9 @@ Spotted a bug? Has deployment gone wrong? Do you have user feedback? Raise an is
 # Feature requests
 
 Raise an issue for these and tag it as an Enhancement. We love every idea. Please give us as much context on the why as possible.
+
+# Questions?
+
+Come say hi to us on [Slack](https://join.slack.com/t/papercups-io/shared_invite/zt-h0c3fxmd-hZi1Zp8~D61S6GD16aMqmg)! :wave:
+
+Or if you prefer, email us at [email protected] — we're always happy to chat!