Remove broken link

Author: adamlaki

src/docs/getting-started/contribution.md

@@ -34,8 +34,6 @@ Pull requests are the best way to propose changes to the codebase. We actively w
 
 ## Your First Contribution
 
-Here are a couple of friendly tutorials you can include: https://makeapullrequest.com/ and https://www.firsttimersonly.com/
-
 Are you working on your first Pull Request? You can learn how from this *free* series, [How to Contribute to an Open Source Project on GitHub](https://app.egghead.io/playlists/how-to-contribute-to-an-open-source-project-on-github).
 
 ## Any Contributions You Make Will Be Under the MIT Software License