Generated HTML shouldn't need to be run in docroot

[coke]

To simplify testing, IWBNI all the HTML/JS/CSS links were relative.

Looks like all the HTML is in the top level directory, so we don't have to deal with different relative pathing at all.

[coke]

Bah, some content is in subdirectories, which means we do have to track the relative pathing. Still doable, though.

[coke]

... Found a third party tool that lets me serve up the directory as if it were root. Using that, rejecting my own ticket.

[moritz]

@coke, fwiw there's also an app.pl in the root dir of the repo, which serves the generated files via HTTML (it's a Mojolicious p5 app).