Made dependency lists a bit more consistent and reverted some of the Arch Linux wording since it felt a bit off. Even the official website refers to Arch Linux as Arch from time to time.
Although I removed install scripts in a previous commit, with the current structure of this repository, it makes sense to include them once again.
The word "arch" by itself may be confused with architecture, so it's probably best to go with "archlinux" instead.
