title: vscode, how to format markdown file?
body: <p>It seems <code>vscode</code> does not support format markdown file by default.</p>
  
  <p>When I use the shortcut <code>command + shift + f</code> to format the markdown file. </p>
  
  <p><code>vscode</code> give me: <code>Sorry, but there is no formatter for 'markdown'-files installed.</code></p>
  
  <p>Is there a way to format a markdown file without installing an extension? </p>