About the Mastering Git category

This is the official forum for the book Mastering Git, available here: https://store.raywenderlich.com/products/mastering-git

How do you want feedback regarding the content in the (beta) book ?

Thanks for the book! really enjoy reading through it.

In Chapter 13 page 146, you are referring to the magic square Repo:

which gives a 404 (not found).