Need a little help, connect to github is not working for me. It results in a 400 error. (http://googlecloudplatform.blogspot.com/2014/04/using-github-for-push-to-deploy.html)

This is in my google developers console, under source code, browse:

Connect an external repository

If you connect a repository, your Google Cloud Repository will mirror the connected repository's content. Pushing to the Google Cloud repository will no longer be possible.

GitHub
https://github.com

Connect