title: Is it possible to support visitor comments in Docusaurus?
body: <p>I'm building a website using <a href="https://v2.docusaurus.io" rel="noreferrer">Docusaurus 2</a>.</p>
  
  <p>My website will contain docs and blogs. I wonder if it is possible to let visitors comment below an article?</p>
  
  <p>I guess, if we support comments, we need an authentication system for the website too.</p>
  
  <p>If the native Docusaurus does not support this, Is there any plugin to do so?</p>