[jasode]

It seems like the "github.com" link would be a better and more canonical url rather than link an opaque url to "githubusercontent.com"

https://github.com/kenjihiranabe/The-Art-of-Linear-Algebra

[happy-go-lucky]

And, "Graphic Notes on Gilbert Strang's Linear Algebra for Everyone" would be less ambiguous than "The Art of Linear Algebra."