1) Make a Commit (Save your work with a message)
In GitHub Desktop:
- Select the files you changed (left sidebar).
- Write a clear commit summary (e.g., Finish Unit 1 variables exercise).
- Optionally add a description (what you changed and why).
- Click Commit to main (or your current branch).
Commit early and often — small commits make it easier to undo mistakes and review your
progress.