Add README to package

Author: rubo

src/Directory.Build.props

@@ -12,7 +12,7 @@
     <Authors>Nethermind</Authors>
     <Copyright>Demerzel Solutions Limited</Copyright>
     <SourceRevisionId Condition="'$(Commit)' != ''">$(Commit.Substring(0, 8))</SourceRevisionId>
-    <VersionPrefix>1.3.1</VersionPrefix>
+    <VersionPrefix>1.3.2</VersionPrefix>
     <VersionSuffix></VersionSuffix>
   </PropertyGroup>
 

src/Nethermind.Int256/Nethermind.Int256.csproj

@@ -12,6 +12,7 @@
     <PackageId>Nethermind.Numerics.Int256</PackageId>
     <PackageLicenseExpression>MIT</PackageLicenseExpression>
     <PackageProjectUrl>https://nethermind.io</PackageProjectUrl>
+    <PackageReadmeFile>README.md</PackageReadmeFile>
     <PackageTags>int256 uint256</PackageTags>
     <RepositoryType>git</RepositoryType>
     <RepositoryUrl>https://github.com/nethermindeth/int256</RepositoryUrl>
@@ -25,4 +26,8 @@
     </PackageReference>
   </ItemGroup>
 
+  <ItemGroup>
+    <None Include="../../README.md" Pack="true" PackagePath="/" />
+  </ItemGroup>
+
 </Project>