Create your markdown the way you normally would with the appropriate headings. Here is some example content:
<!-- Your front matter up here -->
One morning, when Gregor Samsa woke from troubled dreams, he found himself transformed in his bed into a horrible vermin.
## My Heading
He lay on his armour-like back, and if he lifted his head a little he could see his brown belly, slightly domed and divided by arches into stiff sections. The bedding was hardly able to cover it and seemed ready to slide off any moment.
### My Subheading
A collection of textile samples lay spread out on the table - Samsa was a travelling salesman - and above it there hung a picture that he had recently cut out of an illustrated magazine and housed in a nice, gilded frame. It showed a lady fitted out with a fur hat and fur boa who sat upright, raising a heavy fur muff that covered the whole of her lower arm towards the viewer. Gregor then turned to look out the window at the dull weather. Drops
Hugo will take this Markdown and create a table of contents from ## Introduction, ## My Heading, and ### My Subheading and then store it in the page variable.TableOfContents.
The built-in .TableOfContents variables outputs a <nav id="TableOfContents"> element with a child <ul>, whose child <li> elements begin with appropriate HTML headings. See the available settings to configure what heading levels you want to include in TOC.
The following is a partial template that adds slightly more logic for page-level control over your table of contents. It assumes you are using a toc field in your content’s front matter that, unless specifically set to false, will add a TOC to any page with a .WordCount (see Page Variables) greater than 400. This example also demonstrates how to use conditionals in your templating: