title: Markdown: Reference to section from another file
body: <p>I have two markdown files: a <code>parent.md</code> and a <code>child.md</code>.</p>
  
  <p>So <code>parent.md</code>:</p>
  
  <pre><code># Main section
  
  ## sub-section
  </code></pre>
  
  <p>I'd like to make reference to <code>## sub-section</code> from <code>child.md</code>.</p>
  
  <p>Any ideas?</p>