Following the intro guide Bravo! Now, you’re on the code view for your readme-edits branch, which is a copy of master. Let’s make some edits.
On GitHub, saved changes are called commits. Each commit has an associated commit message, which is a description explaining why a particular change was made. Commit messages capture the history of your changes, so other contributors can understand what you’ve done and why.
Make and commit changes Click the README.md file. Click the pencil icon in the upper right corner of the file view to edit. In the editor, write a bit about yourself. Write a commit message that describes your changes. Click Commit changes button.