Я узнал про markdown.
Вы тоже можете узнать про markdown из статей:
| Filename extensions | .md, .markdown1 |
| Internet media type | text/markdown2 |
| Uniform Type Identifier (UTI) | net.daringfireball.markdown |
| Developed by | John Gruber |
| Initial release | March 19, 2004 (14 years ago)[3][4] |
| Latest release | 1.0.1 (December 17, 2004 (13 years ago)[5]) |
| Type of format | Markup language |
| Extended to | MultiMarkdown, Markdown Extra, CommonMark[6] |
| Open format? | yes[7] |
| Website | http://daringfireball.net/projects/markdown |