Seeking clarification / cleanup on Raspberry Pi / Package Build instructions

Greetings,
The documentation here: https://wiki.ubuntu.com/ARM/Raspberr...ry_Pi_3_images is great, but I think it over-abbreviates a bit by saying "Branch lp:~fo0bar/livecd-rootfs/raspi2-rpi3, build its .deb and install it."

I'm pretty hip to building from source, but not in a Debian/Ubuntu-specific context. Should this link to somewhere else or lay out the steps involved to 'branch' and 'build a .deb'?

Look immediately under the line you pasted. Are those not the step by step instructions?