This is an .mld file. It doesn't have an auto-generated
title, like modules and other pages generated fully by odoc do.
It will have a TOC generated from section headings.
This is a section.
Another paragraph in section.
This is another section.
Another paragraph in section 2.
This is a subsection.
Another paragraph in subsection.
Yet another paragraph in subsection.
This is another subsection.
Another paragraph in subsection 2.
Yet another paragraph in subsection 2.