pack README into nuget packages

Author: Lordfirespeed

Directory.Build.props

@@ -9,6 +9,7 @@
     <PackageProjectUrl>https://github.com/EvaisaDev/UnityNetcodePatcher</PackageProjectUrl>
     <RepositoryUrl>https://github.com/EvaisaDev/UnityNetcodePatcher</RepositoryUrl>
     <RepositoryType>git</RepositoryType>
+    <PackageReadmeFile>README.md</PackageReadmeFile>
   </PropertyGroup>
 
   <!-- MinVer -->
@@ -22,4 +23,8 @@
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
   </ItemGroup>
+  
+  <ItemGroup>
+    <None Include="$(ProjectDir)../README.md" Pack="true" PackagePath="/"/>
+  </ItemGroup>
 </Project>