Git Orphan Branches

The following description is from the git-checkout Manual Page:

git checkout --orphan new_branch_name

Create a new orphan branch named new_branch_name, and switch to it.

The first commit made on this new branch will have no parents and it will be the root of a new history totally disconnected from all the other branches and commits.

Github Pages

Github User Pages use the repo’s master branch. Github Project Pages use an orphan branch.