Move contributing guide to CONTRIBUTING.md

Author: boukeversteegh

CONTRIBUTING.md

@@ -0,0 +1,23 @@
+# Contributing
+
+There's lots to do, and we're working hard, so any help is welcome!
+
+- :speech_balloon: Join us on [Slack](https://join.slack.com/t/betterproto/shared_invite/zt-f0n0uolx-iN8gBNrkPxtKHTLpG3o1OQ)!
+
+What can you do?
+
+- :+1: Vote on [issues](https://github.com/danielgtaylor/python-betterproto/issues).
+- :speech_balloon: Give feedback on [Pull Requests](https://github.com/danielgtaylor/python-betterproto/pulls) and [Issues](https://github.com/danielgtaylor/python-betterproto/issues):
+    - Suggestions
+    - Express approval
+    - Raise concerns
+- :small_red_triangle: Create an issue:
+    - File a bug (please check its not a duplicate)
+    - Propose an enhancement
+- :white_check_mark: Create a PR:
+    - Creating a failing test-case to make bug-fixing easier
+    - Fix any of the open issues
+        - [Good first issues](https://github.com/danielgtaylor/python-betterproto/issues?q=is%3Aissue+is%3Aopen+label%3A%22good+first+issue%22)
+        - [Issues with tests](https://github.com/danielgtaylor/python-betterproto/issues?q=is%3Aissue+is%3Aopen+label%3A%22has+test%22)
+    - New bugfix or idea
+        - If you'd like to discuss your idea first, join us on Slack!

README.md

@@ -302,35 +302,10 @@ datetime.datetime(2019, 1, 1, 11, 59, 58, 800000, tzinfo=datetime.timezone.utc)
 {'ts': '2019-01-01T12:00:00Z', 'duration': '1.200s'}
 ```
 
-
-## Contribution
-
-
-Join us on [Slack](https://join.slack.com/t/betterproto/shared_invite/zt-f0n0uolx-iN8gBNrkPxtKHTLpG3o1OQ)!
-
-There's lots to do, and we're working hard, so any help is welcome!
-
-What can you do?
-
-- :+1: Vote on [issues](https://github.com/danielgtaylor/python-betterproto/issues).
-- :speech_balloon: Give feedback on [Pull Requests](https://github.com/danielgtaylor/python-betterproto/pulls) and [Issues](https://github.com/danielgtaylor/python-betterproto/issues):
-    - Suggestions
-    - Express approval
-    - Raise concerns
-- :small_red_triangle: Create an issue:
-    - File a bug (please check its not a duplicate)
-    - Propose an enhancement
-- :white_check_mark: Create a PR:
-    - Creating a failing test-case to make bug-fixing easier
-    - Fix any of the open issues
-        - [Good first issues](https://github.com/danielgtaylor/python-betterproto/issues?q=is%3Aissue+is%3Aopen+label%3A%22good+first+issue%22)
-        - [Issues with tests](https://github.com/danielgtaylor/python-betterproto/issues?q=is%3Aissue+is%3Aopen+label%3A%22has+test%22)
-    - New bugfix or idea
-        - If you'd like to discuss your idea first, join us on Slack!
-
 ## Development
 
-Join us on [Slack](https://join.slack.com/t/betterproto/shared_invite/zt-f0n0uolx-iN8gBNrkPxtKHTLpG3o1OQ)!
+- _Join us on [Slack](https://join.slack.com/t/betterproto/shared_invite/zt-f0n0uolx-iN8gBNrkPxtKHTLpG3o1OQ)!_
+- _See how you can help → [Contributing](CONTRIBUTING.md)_
 
 ### Requirements