title: Stop git merge from opening text editor
body: <p>Every time I run a git merge command it opens the text editor asking me to add an extra message.</p>
  <p>How can I stop git from opening the editor &amp; simply merging my branches?  Because when it opens the editor it doesn't complete the merge, even if I add an extra message &amp; save the file, the terminal just hangs on my git merge command.</p>
  <pre><code>Merge branch 'my-feature-branch' into main-development
  
  # Please enter a commit message to explain why this merge is necessary,
  # especially if it merges an updated upstream into a topic branch.
  # 
  # Lines starting with '#' will be ignored, and an empty message aborts
  # the commit.
  </code></pre>