You might also consider using a .gitignore file in your repository like this one: https://github.com/github/gitignore/blob/master/UnrealEngine.gitignore (basically tells Git/GitHub what files to ignore and not store).
You might also consider using a .gitignore file in your repository like this one: https://github.com/github/gitignore/blob/master/UnrealEngine.gitignore (basically tells Git/GitHub what files to ignore and not store).