Not sure that they’ll include a printed guide, but you can at least use the online files included in the firmware repository. Those include a text manual and a state diagram (which is sort of in progress).
To flash drivers, I suggest reading the README file linked from the firmware thread. It includes a variety of resources which should be useful.
FWIW, here’s the current interface diagram… it’s a little busy, but I’m not sure how to represent everything visually:
