book-create
Get flash to fully experience Pearltrees
book-self-publish
Markdown is a lightweight markup language , originally created by John Gruber with substantial contributions from Aaron Swartz , allowing people “to write using an easy-to-read, easy-to-write plain text format, then convert it to structurally valid XHTML (or HTML )”. [ 1 ] The language takes many cues from existing conventions for marking up plain text in email .
Markdown