hugo-theme-hilfe/exampleSite/content/shortcodes/toc-tree.md

The toc-tree shortcode will generate a Table of Content from a section file tree of your content directory. The root of the resulting ToC will be the page on which you define the shortcode.

{{</* toc-tree */>}}

Example

As said, the root will be the site on which the shortcode was used, you can see a demo including nesting in the ToC Tree section.