Accessing a GitHub repository from the command line

Hi,

I’m pretty new to GitHub and have made 2 seperate modifications to the same branch in a GitHub repository. This has made one mega-pull request. They are 2 isolated issues (i should have made the second modification in its own branch)

I have never used the command git but need to do a git revert

How do i do a git revert to a repository in GitHub

Could you please be a little more specific?

Is the repository public? If so, please provide a link.