Markdown

Markdown is a markup language and quite possibly the most common one for documenting code. If you have ever encountered a file that ends in .md before; that is a Markdown file. If you have ever looked at projects on GitHub, GitLab, or any other code hosting platform you have seen README files written in Markdown. For this reason it can be quite vital to at least know the basics of Markdown if you are going to be making projects that you would like to document.