fix: Added PackageReadmeFile and PackageLicenseFile to NuGet package

Author: willysoft

src/LocalPortFiltering.AspNetCore/LocalPortFiltering.AspNetCore.csproj

@@ -17,14 +17,20 @@
     <PackageProjectUrl>https://github.com/willysoft/LocalPortFiltering.AspNetCore</PackageProjectUrl>
     <RepositoryUrl>$(PackageProjectUrl)</RepositoryUrl>
     <RepositoryType>git</RepositoryType>
-    <PackageLicenseExpression>MIT</PackageLicenseExpression>
     <SignAssembly>true</SignAssembly>
     <AssemblyOriginatorKeyFile>opensource.snk</AssemblyOriginatorKeyFile>
     <IsPackable>true</IsPackable>
+    <PackageReadmeFile>README.md</PackageReadmeFile>
+    <PackageLicenseFile>LICENSE</PackageLicenseFile>
   </PropertyGroup>
 
   <ItemGroup>
     <FrameworkReference Include="Microsoft.AspNetCore.App" />
   </ItemGroup>
 
+  <ItemGroup>
+    <None Include="..\..\README.md" Pack="true" PackagePath="\"/>
+    <None Include="..\..\LICENSE" Pack="true" PackagePath=""/>
+  </ItemGroup>
+
 </Project>