Quick guide to create a new create a new repository or or push an existing repository from the command line
echo "# tester" >> README.md
git init
git add README.md
git status
git commit -m "first commit"
git branch -M main
git remote add origin https://github.com/<github_username>/<repo_name>.git
git push -u origin main
git remote add origin https://github.com/<github_username>/<repo_name>.git
git add .
git status
git commit -m "comment"
git branch -M main
git push -u origin main