Markdown

A header

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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

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A [link][1] to Google.

[1]: http://www.google.com "Try Google!"

A horizontal rule:

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sp1 | sp2 --- | --- a | b 123 | 456