Error creating app on Heroku website

When I try to create a new app on the heroku site from this link: https://dashboard.heroku.com/new?template=https%3A%2F%2Fgithub.com%2Fmessier31%2Fcors-proxy-server.git I get this error:

Item could not be created:
We couldn't deploy your app because the source code violates the Salesforce Acceptable Use and External-Facing Services Policy.

[zMantleS]

Connect your github account, fork the repo to yours, then add that fork to the settings

[BartRoozen]

Connect your github account, fork the repo to yours, then add that fork to the settings

@zMantleS thank you very much! I've been struggling with this for a while and apparently this was the solution.