README: fix link to contributing

README.md

@@ -141,7 +141,7 @@ If the issue is a protocol weakness that cannot be immediately exploited or some
 
 ## Project and Community
 
-[![](https://cdn.rawgit.com/jbenet/contribute-ipfs-gif/master/img/contribute.gif)](https://github.com/ipfs/community)
+[![](https://cdn.rawgit.com/jbenet/contribute-ipfs-gif/master/img/contribute.gif)](https://github.com/ipfs/community/blob/master/CONTRIBUTING.md)
 
 The IPFS Project is now very large, with hundreds of contributors in our community. You are invited to join it! Here are some links to our communication channels: