A Markup language to write multipage or single page HTML / PDF books, blogs, etc. that is saner and more powerful than Markdown and Asciidoctor, but still nicer to write than XML and JSON, with reference implementation in JavaScript.
The real README is of course README.ciro
A rendered version can be seen at: https://************.com/cirodown
A live in-browser demo can be seen at: https://************.com/cirodown/editor