hugo/docs/layouts/shortcodes/content-tree.html

<div class="code">
    <pre><code>
        ├── blog
        │   ├── _index.md [section]
        │   ├── first-post.md [page]
        │   └── second-post
        │       ├── index.md [page bundle]
        │       └── photo.jpg [page resource]
        └── tags
            ├── _index.md [taxonomy]
            └── funny
                └── _index.md [term]
    </code></pre>
</div>