MarkupLanguage

Embedding information about structure, presentation or other functionality within PlainText

Examples :

• SmartAscii
• MarkDown
• LaTeX / CommonMark
• HyperTextMarkupLanguage
• "Subtext" is another proposal. https://subconscious.substack.com/p/subtext-markup-for-note-taking Unfortunate the name clashes with SubText which is something different (although not completely unrelated)

See also :

• WikiSyntaxIsTheUserInterface
• TextPeople