feature: add Get Started to nuget package (#61)

Author: RLittlesII

docs/GET_STARTED.md

@@ -0,0 +1,28 @@
+# Get Started
+
+## Registering Framework Concerns
+
+`ICoreRegistration` gives the framework an understanding of the following concerns for ReactiveMarbles internals.  We provide a simple builder and extension method to register it against the `ServiceLocator`.
+
+```csharp
+ServiceLocator
+   .Current()
+   .AddCoreRegistrations(() =>
+        CoreRegistrationBuilder
+           .Create()
+           .WithMainThreadScheduler(Scheduler.Default)
+           .WithTaskPoolScheduler(TaskPoolScheduler.Default)
+           .WithExceptionHandler(new DebugExceptionHandler())
+           .Build());
+```
+
+## AsValue
+
+`AsValue` allows you to bind an `IObservable<T>` to a property that produces a property changed event.
+
+```csharp
+_valueChange =
+    this.WhenChanged(x => x.Property)
+        .Select(x => x + "Changed")
+        .AsValue(onChanged: x => RaisePropertyChanged(nameof(ValueChange)));
+```

src/ReactiveMarbles.Mvvm.Tests/ReactiveMarbles.Mvvm.Tests.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-      <TargetFramework>net5.0</TargetFramework>
+      <TargetFramework>net6.0</TargetFramework>
       <IsPackable>false</IsPackable>
       <LangVersion>preview</LangVersion>
       <Nullable>enable</Nullable>

src/directory.build.props

@@ -7,6 +7,7 @@
     <PackageProjectUrl>https://github.com/reactivemarbles/Mvvm</PackageProjectUrl>
     <PackageDescription>Common base classes for the MVVM pattern for Reactive Marbles.</PackageDescription>
     <PackageIcon>logo.png</PackageIcon>
+    <PackageReadmeFile>docs\GET_STARTED.md</PackageReadmeFile>
     <Owners>glennawatson;rlittlesii</Owners>
     <PackageTags>system.reactive;propertychanged;inpc;reactive;functional;mvvm</PackageTags>
     <PackageReleaseNotes>https://github.com/reactivemarbles/Mvvm/releases</PackageReleaseNotes>
@@ -39,6 +40,7 @@
   <ItemGroup>
     <None Include="$(MSBuildThisFileDirectory)..\LICENSE" Pack="true" PackagePath="LICENSE" />
     <None Include="$(MSBuildThisFileDirectory)..\images\logo.png" Pack="true" PackagePath="\"/>
+    <None Include="$(MSBuildThisFileDirectory)..\docs\GET_STARTED.md" Pack="true" PackagePath="\docs"/>
   </ItemGroup>
 
   <ItemGroup>