Make the master branch the default branch, like everyone else does...

This is not a design or bug issue. It is about my mint-yz-theme GitHub repository.

I should duplicate my current master branch into a new branch named source.
This source branch will remain the same as the https://github.com/linuxmint/mint-themes master branch. Without any changes.
And then, my master branch will be the place where to merge added features and modifications from all my other branches. So, this master branch will be the branch where everything can be found.
And then, this master branch will be the default, landing branch on GitHub. (And also on my local git repository, on my HDD: git remote set-head origin master)

SebastJava / mint-yz-theme