Merge pull request #459 from dotboris/match-contributing-guide-and-re…

…adme

Clean up contribution guide file to match the one in the readme

CONTRIBUTING.md

@@ -1,5 +1,5 @@
-[Fork the repository](http://github.com/rrrene/credo/fork)
-Create your feature branch (`git checkout -b my-new-feature`)
-Commit your changes (`git commit -am 'Add some feature'`)
-Push to the branch (`git push origin my-new-feature`)
-Create new Pull Request
+1. [Fork it!](http://github.com/rrrene/credo/fork)
+2. Create your feature branch (`git checkout -b my-new-feature`)
+3. Commit your changes (`git commit -am 'Add some feature'`)
+4. Push to the branch (`git push origin my-new-feature`)
+5. Create new Pull Request