Just so I understand, are you quibbling over a space?
Sure, the tutorial you are looking at might be dated but I hardly think the difference between "Quickstart" versus "Quick Start" makes any significant difference. I suggest you try to pick the closest option you can find and move on.
Practice only makes habit, only perfect practice makes perfect.—every music teacher ever
Practice mindfully by doing the right things and doing things right.— Junilu