chore: publish repository URL (#718)

Author: fgreinacher

Directory.Build.props

@@ -5,6 +5,7 @@
     <Authors>Tatham Oddie &amp; friends</Authors>
     <SignAssembly Condition="'$(Configuration)' == 'Release'">True</SignAssembly>
     <AssemblyOriginatorKeyFile>$(MSBuildThisFileDirectory)StrongName.snk</AssemblyOriginatorKeyFile>
+    <PublishRepositoryUrl>true</PublishRepositoryUrl>
     <IncludeSymbols>true</IncludeSymbols>
     <SymbolPackageFormat>snupkg</SymbolPackageFormat>
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>