Documentation Expansion and Clarifications

[drstarson]

• When developers are adding the package, what should they set as Dependency Rule? Add this to the README & GitBook.
  

README has the following:

Try first to run the Quick Start Demo
A fast and easy way to get started with the SDK is to test it inside of PassioSDKQuickStart Demo App included in this package. Here are the steps: ...

• I am not seeing PassioSDKQuickStart Demo App. Where do I find it?

[Pratik7u]

@drstarson
Here is the quick start project: https://github.com/Passiolife/Passio-iOS-QuickStart
We will add README file for the same

For Dependency Rule while adding package, I have added the detailed information about different options (inside Quick start section)

[drstarson]

• @Pratik7u please go through the full README, update and delete outdated content.

[drstarson]

• We certainly need to specify what differences developers should expect between UIKit and SwiftUI