Update readme pathing

Author: BenjaminMichaelis

Directory.Build.props

@@ -26,7 +26,7 @@
 		<ContinuousIntegrationBuild>true</ContinuousIntegrationBuild>
 	</PropertyGroup>
 	<ItemGroup>
-		<None Include="../../README.md" Pack="true" PackagePath="\"/>
+		<None Include="../README.md" Pack="true" PackagePath="\"/>
 		<SourceRoot Include="$(MSBuildThisFileDirectory)"/>
 		<PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.1.1">
 			<PrivateAssets>all</PrivateAssets>