$ man markdown

Markdown

Plain text format with simple syntax for headings, lists, links, and formatting.

by Shawn Tenam

All your content lives in markdown. Blog posts, drafts, voice files, workflows, skill documentation. Markdown is readable as plain text, version-controllable in Git, and renderable as HTML.

# heading, **bold**, - list item, [link](url). Write in any text editor. Commit to Git. Render on your site. No proprietary formats. No lock-in.