Markdown

Markdown is a lightweight markup language with plain-text-formatting syntax, created in 2004 by John Gruber with Aaron Swartz.

• Markdown by John Gruber where it all started.
• Markdown Guide is a free and open-source reference guide that explains how to use Markdown, the simple and easy-to-use markup language you can use to format virtually any document.
• TeXMe is a lightweight JavaScript utility to create self-rendering Markdown + LaTeX documents.
• R Markdown turn your analyses into high quality documents, reports, presentations and dashboards.