Cool project, well done. I'd suggest that instead of instructing users to clone your Github project and then detailing how to adapt the RPi code to the CHIP computer, rather create a Github branch that has the CHIP-specific diffs, and link to that branch for users to clone instead of the original branch. That way, your tutorial is also more condensed (a good thing, imho).
Yes, I'd echo that. I teach for a living, and it's amazing the number of different ways people can come up with when interpreting what you think is a straightforward instruction. When I read the "delete lines ...." bit, it didn't seem completely explicit, and in addition, I'd think that alone would put a LOT of people off having a go. Much of this kind of thing is generating confidence in people, and if they fall at the first hurdle, it's game over; possibly for their entire lifetime if it happens at the wrong point!
