John Watson

Replace `\h` with $inst in the user's existing PS1 variable, instead of replacing the contents entirely.

We define a preferred order for property specifiers [here](https://github.com/Raizlabs/Raizlabs-Cocoa-Style#properties-1). We should also mention where to place nullability annotations. I've been using _strength, atomicity, nullability_, e.g.: ``` objc @property (strong, nonatomic,...