chore(readme): fix readme in nuget

Author: claylaut

Directory.Build.props

@@ -23,6 +23,7 @@
 
   <ItemGroup>
     <None Include="$(SourceRoot)assets/logo_128.png" Pack="true" Visible="false" PackagePath="/" />
+    <None Include="$(SourceRoot)README.md" Pack="true" PackagePath=""/>
   </ItemGroup>
 
   <!-- Common compile parameters -->

SignalR.Orleans.sln

@@ -16,7 +16,6 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 		Directory.Build.props = Directory.Build.props
 		package.json = package.json
 		README.md = README.md
-		README.Nuget.md = README.Nuget.md
 	EndProjectSection
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "SignalR.Orleans.AspNet", "src\SignalR.Orleans.AspNet\SignalR.Orleans.AspNet.csproj", "{F244A392-59B6-40D1-BDDE-04CD27526CD0}"