git status — see what changed

Between commits, git status is your compass: it shows which files changed, which are staged, and which git doesn't track yet. On your new branch, make a change and look at it:

!cd git-playground && echo "one more line" >> notes.txt && git status

Then click Check — it verifies the repo really has a pending change. That's the loop: change → status → add → commit. You know git.