go to https://github.com/CWMe/GitGud2.git and click the fork button in the top right
clone your new forked repo
git clone YOUR_FORKED_REPO_URL_HERE
cd GitGud2
create a feature branch from master
git checkout -b feature-a master
make a change to the README.md file and commit it prepare a file for a commit
git add README.md
make the commit, a snapshot of your project is created
git commit -m "updated readme"
git push origin feature-a
go to https://github.com/CWMe/GitGud2/compare and setup a new pull request from your feature-a branch to master. Make sure to specify that your branch is coming from a Forked repository