> I don't know who renowned iOS developer Mike Lee is
Apparently, he's a man who develops software for a proprietary, patent-encumbered platform owned by a company who uses patents offensively. Presumably it's acceptable to use iPatents predatorily because they're broadly linked to a gadget he likes. Or maybe this is just how you think different.
Only the doctype, title, and the loss of </link>, are required for it to validate as HTML5; <head> and <body> are implied.
I think the original `markdown` utility generated a HTML fragment rather than a standalone page. If so, perhaps the point of this is that adding the CSS link is the Simplest Thing That Can Possibly Work in order to improve the page appearance?
Even this description doesn't really do him justice; the man is surely approaching genius status. If he wanted to get rich, he'd hardly be writing cutting-edge cryptography papers. :-)
Apparently, he's a man who develops software for a proprietary, patent-encumbered platform owned by a company who uses patents offensively. Presumably it's acceptable to use iPatents predatorily because they're broadly linked to a gadget he likes. Or maybe this is just how you think different.