Git url clones an empty repo about keystone-starter

[rasselbock]

This is actually the expected behavior of the deploy button. The idea is to encourage people to contribute to the source repo. There's probably a better way but you can do something like:

git clone https://github.com/USER/REPO.git
git remote add heroku https://git.heroku.com/APP-NAME.git
git push -f heroku master

See: http://stackoverflow.com/questions/28737548/how-to-update-an-heroku-app-created-using-github-deploy-to-heroku-button