Set up documentation

[otusweb]

Checklist

• [x ] Reviewed the README and documents.
• [x ] Searched existing issues for ensure not duplicated.

Description

It is very hard to figure out how to set Playbook up for a UIKit app

Motivation and Context

I'd like to set Playbook for my my UIKit app, but there is no documentation on how to set things up. The sample app is SwiftUi only, so it makes it hard to figure it out

Proposed Solution

Add a page in the documentation explaining how to setup the playbook target to for a UIKit app