Markdown Guide
Welcome to the Markdown kramdown Style Guide for about.GitLab.com This website was generated by Middleman, a blog-aware Static Site Generator ( SSG) widely used by web developers. Markup language is part of the structure of any SSG. It is a system to write documents making them somehow syntactically distinguishable from text.
https://about.gitlab.com/handbook/product/technical-writing/markdown-guide/#headings