An example directory structure turned into HTML by payload.

directory_structure.txt

|~posted/
  |~articles/
    |~an-article/
      |-index.html
      |-image.png
      `-styles.css
    |~another-article/
      |-index.html
      `-styles.css
  |~portfolio/
    |~portfolio-piece/
      |-index.html
      |-image.png
      `-logo.png

output.html

<ul>
    <li><h2>Articles</h2></li>
    <li>
        <ul>
            <li>
                <h3><a href="/posted/articles/an-article/">An Article</a></h3>
            </li>
            <li>
                <h3><a href="/posted/articles/another-article/">Another Article</a></h3>
            </li>
        </ul>
    </li>
</ul>
<ul>
    <li><h2>Portfolio</h2></li>
    <li>
        <ul>
            <li>
                <h3><a href="/posted/portfolio/portfolio-piece/">Portfolio Piece</a></h3>
            </li>
        </ul>
    </li>
</ul>