Make it more like a spec, less like a GitHub README

[domenic]

Work on this is proceeding in the official-lookin branch, using the template of other WHATWG specs.

Currently I'm only committing the "source" file, without running it through Anolis, because (a) committing built files to the repository seems lame; (b) I can't get that crazy Anolis toolchain running on my poor little Windows box. In leiu of that, we can use http://anolis.hoppipolla.co.uk/ to get auto-built versions, e.g. this one. Longer term I'm not sure what the right solution is.

Right now I'm mainly working on paring down the non-normative text and examples into a reasonable subset. I'll tackle the actual algorithms and class definitions after that.

I'm opening this bug to surface the fact that this is being worked on and so people can easily get to the appropriate preview link for the built version of official-lookin, and so that I can update the bug as I make substantial updates to the branch. I'd also love to use this bug as a place for people to give feedback on how to write things better as a spec.

[domenic]

Some work going on in the bikeshed branch, including auto-building and deploying to gh-pages upon push. Will merge into master soon.

[domenic]

Boom https://streams.spec.whatwg.org/