If our users are moderately technical, allowing them to write Markdown instead of using a WYSIWYG editor can make them happier and more efficient.

Ruby has several gems whose main concern is parsing Markdown. Each of these has a different approach to the problem, and implements a different Markdown specification.

In this article, we will cover Commonmarker, a gem that implements the CommonMark specifications and adds support for GitHub-flavored Markdown, which some users prefer because of its feature set.

https://avohq.io/blog/github-flavored-markdown-commonmarker