title: fatal: unable to access 'https://github.com/usename/my-project.git/': The requested URL returned error: 403 Mac
body: <p>I trying to push an existing repository from the command line, i followed the git hub steps below, it looks like github change master to main.</p>
  <p>…or push an existing repository from the command line
  git remote add origin git@github.com:username/my-project.git
  git branch -M main
  git push -u origin main</p>
  <p>I read the solutions for window user to solve the  error 403 ;</p>
  <p>I am using Mac notebook, i don't have a control panel on my system, i don't see the credential management either.  My ssh key is successful connected to github.</p>