article: A thing or two about failure.

Very much a draft, due to be published today and then be talked about
with people I trust. Very much an experiment, let's see how it goes.
Move thing about failure out of self.promises series.

Yes, that series (and the "promise", pledge is a better word?) inspired
it, but it's a thing of it's own now. And if you'd like to see the
connection, those two promising articles are linked right at the top, so
I don't see what you're complaining about.
Fix spelling and some wording issues.

Next up, links. Then, the grueling part: Sending it out to the world...

Mhh, originally the commit message was different. Do you like it better?

    Spelling is hard. Coherence aswell. Everything.
Fix spelling.
Linkage for the 'things about failure' article.