<p><em><em>Document File Format - a continuation of Content
Format</em></em></p>
<p><a href="https://en.wikipedia.org/wiki/Document_file_format"
title="Wikipedia - Document File Formats">Wikipedia - Document File
Formats</a></p>
<p><em><em>Creators of Markdown</em></em></p>
<p><a href="https://en.wikipedia.org/wiki/John_Gruber"
title="Wikipedia - John Gruber">Wikipedia - John Gruber</a></p>
<p><a href="https://en.wikipedia.org/wiki/Aaron_Swartz"
title="Wikipedia - Aaron Swartz">Wikipedia - Aaron Swartz</a></p>
