looks nicer when using an h2

2ccff64f · Thomas Steur · 9f0bad5f · 2ccff64f
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -4,5 +4,5 @@ Great to have you here! Read the following guide on our developer zone to learn

 http://developer.piwik.org/guides/contributing-to-piwik-core

-### How to submit a bug report or suggest a feature?
+## How to submit a bug report or suggest a feature?
 Please read the recommendations on writing a good [bug report](http://developer.piwik.org/guides/core-team-workflow#submitting-a-bug-report) or [feature request](http://developer.piwik.org/guides/core-team-workflow#submitting-a-feature-request).