consider generating API docs as part of the build

[pq]

currently the docs are getting generated manually and are unsurprisingly laggy.

(see #589.)

it would be great to automate generation (for lua and sc).

i'm not sure how exactly this would work with how we're currently hosting docs but i think we could use gh-pages without too much hassle.

[tehn]

current the API docs are not hosted on the web. i think it'd be sensible to investigate gh-pages as an update to monome.org requires a manual trigger as well.

agreed that travis automation would be great for this!

[tehn]

re: hosting docs = https://github.com/monome/norns/issues/484

[pq]

initial implementation of deploy to gh-pages complete. 🎉

https://monome.github.io/norns/doc/

still todo:

• 593

• 595

• 594