lightweight markup language
markup language with simple, unobtrusive syntax
Creole
lightweight markup language for wikis
Markdown Extra
lightweight markup language based on Markdown
Plain Old Documentation
lightweight markup language used to document the Perl programming language
Ruby Document format
markup language used for documentation of Ruby programs
wiki markup
lightweight markup language used to write pages at wiki-based websites
Markdown
plain-text formatting syntax, which is popularly used to format readme files
Textile
lightweight markup language
Structure Enhanced Text
lightweight markup language used to format plain text documents