title: How to add a comment to a Vue SFC outside any of the root elements?
body: <p>I'm in a situation where I legally have to add a copyright notice to the top of my files and while I know how I can comment inside either <code>template</code>, <code>script</code> or <code>style</code>, I couldn't find documentation regarding how to do it outside these.</p>
  <p>Based on the structure of the file, I assume the standard HTML comment (<code>&lt;!-- Hi there! --&gt;</code>) should work, and it both: a.) seems to work and b.) my syntax highlighter accepts it.</p>
  <p>However, I'd like to be sure about it and understand how and why it works this way, I was surprised it is seemingly not covered in the Vue docs.</p>