Add SourceLink information

Author: Chris Martinez

build/nuget.props

@@ -12,7 +12,7 @@
   <PackageOutputPath Condition=" $(PackageOutputPath) == '' ">$(MSBuildThisFileDirectory)..\bin</PackageOutputPath>
   <NoWarn>NU5118;$(NoWarn)</NoWarn>
  </PropertyGroup>
- 
+
  <ItemGroup Label="NuGet">
   <None Include="$(MSBuildThisFileDirectory)..\LICENSE" Pack="true" PackagePath="" Visible="false" />
  </ItemGroup>
@@ -21,5 +21,16 @@
  <ItemGroup Label="NuGet">
   <ReleaseNotes Include="$(BuildReleaseNotes.Split('|'))" />
  </ItemGroup>
- 
+
+ <!-- REF: https://github.com/dotnet/sourcelink/blob/master/README.md -->
+ <PropertyGroup Label="SourceLink">
+  <PublishRepositoryUrl>true</PublishRepositoryUrl>
+  <EmbedUntrackedSources>true</EmbedUntrackedSources>
+  <AllowedOutputExtensionsInPackageBuildOutputFolder>$(AllowedOutputExtensionsInPackageBuildOutputFolder);.pdb</AllowedOutputExtensionsInPackageBuildOutputFolder>
+ </PropertyGroup>
+
+ <ItemGroup Label="SourceLink">
+  <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0-beta-63127-02" PrivateAssets="All"/>
+ </ItemGroup>
+
 </Project>