I'm not sure if I am making a mistake, but I couldn't use the command listed in order to clone the repository. I'm using windows, with git installed, and I received the error: "Permission Denied: publickey"

I was able to get everything by looking you up on github and using the url of the repository.

Edit: Also, you might mention the repository earlier, because it's rather large and I've had to break from the book while it downloads.