Add basic release notes and include them in the package (dotnet#220)

add basic release notes and include them in the package

docs/ReleaseNotes/v0.1.8.md

@@ -0,0 +1,6 @@
+# Microsoft.NET.Build.Containers v0.1.8
+
+This is the initial public release of the .NET SDK containerization feature.  It allows for
+simple containerization of Web SDK projects that are pushed to a local Docker daemon.
+
+To learn more, see our [Getting Started](http://github.com/dotnet/sdk-container-builds/blob/main/docs/GettingStarted.md) docs.

docs/ReleaseNotes/v0.2.0.md

@@ -0,0 +1,9 @@
+# Microsoft.NET.Build.Containers v0.2.0
+
+This is the second public release of the .NET SDK containerization feature. This version brings support for
+
+* [authentication to registries](http://github.com/dotnet/sdk-container-builds/blob/main/docs/RegistryAuthentication.md)
+* support for publishing inside Visual Studio
+* [more ways to customize your generated containers](http://github.com/dotnet/sdk-container-builds/blob/main/docs/ContainerCustomization.md)
+
+To start containerizing your projects, see our [Getting Started](http://github.com/dotnet/sdk-container-builds/blob/main/docs/GettingStarted.md) docs.

packaging/package.csproj

@@ -34,6 +34,13 @@
         <PackageReference Include="System.CommandLine" PrivateAssets="all" IncludeAssets="runtime"/>
     </ItemGroup>
 
+    <Target Name="PreparePackageReleaseNotesFromFile" BeforeTargets="GenerateNuspec">
+        <PropertyGroup>
+            <PackageReleaseNotesFile>../docs/ReleaseNotes/v0.2.0.md</PackageReleaseNotesFile>
+            <PackageReleaseNotes>$([System.IO.File]::ReadAllText($(PackageReleaseNotesFile)))</PackageReleaseNotes>
+        </PropertyGroup>
+    </Target>
+
     <Target Name="AddItemsForPackaging" AfterTargets="Build">
         <ItemGroup>
             <!-- root folder -->