docs: add CONTRIBUTING.md file

RomainLanz · RomainLanz · commit ab7afdba57a3 · 2016-01-13T10:02:00.000+01:00
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
@@ -0,0 +1,6 @@
+# Contributing
+
+In favor of active development we accept contributions from everyone. You can contribute by submitting a bug, creating pull requests or even by improving documentation.
+
+Below is the guide to be followed strictly before submitting your pull requests.
+http://adonisjs.com/docs/2.0/contributing
