Merge pull request #4 from cnblogs/fix-path-of-readme-packing

fix: readme file path

Author: ikesnowy

Directory.Build.props

@@ -17,6 +17,6 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <None Include="README.md" Pack="true" PackagePath="\" />
+    <None Include="..\..\README.md" Pack="true" PackagePath="\" />
   </ItemGroup>
 </Project>