The Mardown syntax is a lightweight markup language which allows to convert the syntax to HTML files.
The markup is not clearly specified but is defined in the following website by Daring Fireball who invented this markup: daringfireball.net/projects/markdown.
The markup is not designed for interrelationships between articles, but several types of markups have been defined to allow for a wiki-style structure. The current Markdown format for docJGenerator uses the following: docsify.js.org.