Markdown
Markdown is a lightweight markup language that lets you write formatted documents in plain text using simple symbols. The same file reads clearly as text and renders as styled HTML, making it popular for documentation, README files and notes. It is also widely used to feed clean text to large language models.
Use Markdown for content that should be readable as plain text but publishable with formatting, README files, documentation, wikis, notes and posts. Write it anywhere, and it stays usable forever because the source is plain text.
Source formats: .md, .markdown