[kevinpet]

This looks interesting and I'm always happy to see good documentation appear, even if for a language I rarely use. My one suggestion would be a PDF typeset for on-screen reference. The font size is very hard to read at "best fit" on a 1152px high screen, even when maximized. If you wanted to match the print page numbers, you could cut down the margins on the electronic version.

[chromatic]

I thought about that earlier today. This PDF will become the printed version, but I can render a version for letter-sized paper and another for A4. If I had a good sense of what's most readable on screen, I'd do that too (though the epub version is easiest). There's no strict need to keep the page numbers identical across versions.