Rename your own fork on GitHub. Go to settings and change the repository name under "General"
From your working directory before doing muse setup:
mv TrkAna/ EventNtuple/
cd EventNtuple/
git remote set-url origin [email protected]:YourUsername/EventNtuple
git remote set-url mu2e https://github.com/Mu2e/EventNtuple
cd ../
rm -rf build/XXX/ # if you like
mu2einit
muse setup
muse build -j4 --mu2eCompactPrint