Push React Build into specific branch and import into Glitch project

How would I push my CRA build directory onto a branch on my Github Repo and import it into a build folder into my Glitch project, so I don’t need the CRA development server running when i’m making changes?

Are you wondering how to push to a specific branch, or clone from a branch into a folder?

I’m wondering how to do Both.

Oh ok, well a quick internet search could surely help you.

I couldn’t find anything useful or “detailed”.