Markdown is a text-to-HTML filter; it translates an easy-to-read and easy-to-write structured text format into HTML. Markdown's text format is most similar to that of plain text email, and supports features such as headers, *emphasis*, code blocks, blockquotes, and links. Markdown's syntax is designed not as a generic markup language, but specifically to serve as a front-end to (X)HTML. You can use span-level HTML tags anywhere in a Markdown document, and you can use block level HTML tags (like
and as well). WWW: http://daringfireball.net/projects/markdown/