Enforce Git Strict Flow and GitHub Project Guidelines and define them in the readme

[JonDevOps]

https://gist.github.com/rsp/057481db4dbd999bb7077f211f53f212

no one should be able to commit code directly to the master branch (or develop, or whatever your main development branch is called) and the only way to update it should be with pull requests.

Pull requests should require at least one positive review and CI tests passing (using Travis, Circle CI etc.) before anyone can merge them. If someone’s code breaks the test, this person has to fix the PR. If the PR gets negative review, no one can merge it before it gets improved to get a positive review.