title: How can I preview markdown in Emacs in real time?
body: <p>I'm using spacemacs and I'm looking for a plugin to preview markdown in real time. I have found a plugin <a href="https://github.com/niku/markdown-preview-eww" rel="noreferrer">markdown-preview-eww</a>, but it requires a gem and I prefer not to install ruby.</p>
  
  <p>The <a href="https://github.com/jrblevin/markdown-mode" rel="noreferrer">markdown-mode</a> just exports md to html, and it can't preview markdown in real time. Also, I don't like to generate any file without my agreement.</p>
  
  <p>So, is there any plugin to preview markdown in emacs? Or does everyone use org-mode in emacs rather than markdown?</p>