title: How to change terminology from 'master' to 'main' for TortoiseGit?
body: <p>In keeping with the times, GitHub has changed terminology from <code>master</code> to <code>main</code>,
  but my TortoiseGit still uses <code>master</code> as the name of the main branch.</p>
  <p>So when I push my local repo to Github, there are now 2 branches in GitHub (<code>main</code> and <code>master</code>) which causes confusion.</p>
  <p>How to make TortoiseGit change to using <code>main</code> as the default?</p>