Markdown

Markdown is a lightweight markup language with plain-text-formatting syntax. It was created by John Gruber, with significant contributions from Aaron Swartz, with the goal of allowing people "to write using an easy-to-read, easy-to-write plain text format". Key features include automatic production of well-structured, ready-to-publish documents from 'readable' text files. Its syntax includes items like headers (# Header), bullet lists (- item), italics (*text*), bold (**text**), links ([description](url)) and so forth. Markdown files usually end with .md or .markdown.