Markdown
A header
==
Some text, with words made _italic_ in *two* ways, and other words made bold, also in **two** ways. Note that word-wrapping in the text source is irrelevant to the output.
A sub-section
A [link][1] to Google.
[1]: http://www.google.com "Try Google!"
A horizontal rule:
sp1|sp2 ---|--- a |b 123|456