Upgrade your "head" (use HEAD for reference, keep your work in a separate branch, see GitFlow workflow and GitHub Guides for reference). After you do this — feel free to poke around with the branches, maybe learn something new.
Let's take a pause and be a caveman for a second — or a hacker, if you will — let's go and see how it looks like for the guys without graphical user interface (use git clone, git branch, git checkout, git log, git status). Let's also add a fake contact information into the "head" (use git add, git commit, and git push).
Upgrade your "head" (use HEAD for reference, keep your work in a separate branch, see GitFlow workflow and GitHub Guides for reference). After you do this — feel free to poke around with the branches, maybe learn something new. Let's take a pause and be a caveman for a second — or a hacker, if you will — let's go and see how it looks like for the guys without graphical user interface (use git clone, git branch, git checkout, git log, git status). Let's also add a fake contact information into the "head" (use git add, git commit, and git push).