Document Xamarin.iOS binding ReactiveTableViewController

[RLittlesII]

Is your feature request related to a problem? Please describe.

When trying to setup ReactiveUI bindings to a ReactiveTableViewController there is little documentation to explain how to setup the binding for INotifyCollectionChanged propagations.

https://reactiveui.net/docs/handbook/data-binding/xamarin-ios#ios-binding-helpers

Describe the solution you'd like

I would like better documentation on how ReactiveUI binds and instantiates UITableView in the following scenarios.

1. With a nib file
2. With a story board file
3. Building the UI from code

Describe alternatives you've considered

Other MVVM Frameworks have this documented:

https://www.mvvmcross.com/documentation/platform/ios/ios-tables-and-cells

Describe suggestions on how to achieve the feature

Additional context

Show how to setup using the following:

• [ ] Connected Observable

• [ ] Dynamic Data

[clintonrocksmith]

I'll do this because I'm trying to figure it out right now at work