Markdown Syntax

...you can't really avoid using Markdown, as it's central to both GitHub and Stack Overflow...

Toward a Better Markdown Tutorial @codinghorror

Markdown Basics - User Documentation

Daring Fireball: Markdown

Markdown - Wikipedia, the free encyclopedia

Heading (=H1)
=======

Sub-heading (=H2)
-----------
 
# H1
## H2
### H3
 
Paragraphs are separated
by a blank line. (p)

Leave 2 spaces at the end of a line to do a  
line break (br)

Text attributes *italic*, **bold**, 
`monospace` (code), ~~strikethrough~~ .

A [link](http://example.com).


Shopping list:

  * apples
  * oranges
  * pears

Numbered list:

  1. apples
  2. oranges
  3. pears

The rain---not the reign---in Spain.

Lightweight markup language - Wikipedia, the free encyclopedia