updating readme with xamarin forms example (#29)

* updating readme with xamarin forms example
explanation

* removing sections based on old examples

README.md

@@ -3,21 +3,16 @@ ReactiveUI.Samples
 
 This repository will contain all of ReactiveUI samples.
 
+## Xamarin Forms 
 
-## Basic
-A sample application that demonstrate the use of ReactiveUI. 
-The application includes examples of:
-  * declare a ViewModel 
-  * Commanding (+Async operation)
-  * Validation
-  * Caching heavy operation results
-
+#### Cinephile
 
-## Commands
-We are showing how Commands are being used side by side by MVVMLight, Caliburn.Micro and of course ReactiveUI.
+Example in Xamarin Forms (Android and iOS) shows you the upcoming movies from [the movie api](https://api.themoviedb.org/3)
 
-## Messaging
-We are showing how Messaging Pattern (AKA EventAggregation) is being used side by side by MVVMLight, Caliburn.Micro and of course ReactiveUI.
+Provides examples about: 
 
-## Routing
-Example of the Navigation System that ReactiveUI supplies.
+1. App's bootstrapping
+2. Viewmodel first routing
+3. ListView integration
+4. [ReactiveCommands](https://reactiveui.net/docs/handbook/commands/)
+5. [ObservableAsPropertyHelper](https://reactiveui.net/docs/handbook/observable-as-property-helper/)