title: Using Markdown, how do I center an image and its caption?
body: <p>I want to end up with:</p>
  
  <pre><code>Hello there!
  
        &lt;image&gt;
        This is an image
  
  Hi!
  </code></pre>
  
  <p>Where the image and the text <code>This is an image</code> are centered on the page. How do I accomplish this with Markdown?</p>
  
  <p>Edit: Note that I'm looking to horizontally center the image and text on the page.</p>