I'm assuming/hoping that most paperback readers will still have a computer in front of them when going through the book since it's a tutorial, so hopefully open

I'm assuming/hoping that most paperback readers will still have a computer in front of them when going through the book since it's a tutorial, so hopefully opening up the GitHub code isn't that much of an inconvenience. If they're ideally reading without a computer, then missing that chapter shouldn't be a problem.