Start repo; add chapters 1-3 of a story.

Gotta start somewhere, and this is where I'm starting.

The idea behind a public repo is not so much for purposes of exposure
(though, being public, to say that not everyone is welcome to read it
would be silly) but to give some visible accountability. Everything in
here is for practice and practice alone, so I doubt that anything
of real significance will be written here anyway.

My goal here is to make at least one sizable commit a week. It's a
purposefully vague goal more defined by gut than wordcount, and I like
it that way. Commits can be made by drafting or refining a draft. 500
words added or edited per week would be pretty sweet, but we'll see how
it develops.