add dotnetcore authors;

build/common.props

@@ -8,7 +8,7 @@
 
 	<PropertyGroup Label="Package">
 		<Product>CAP</Product>
-		<Authors>Savorboard</Authors>
+		<Authors>Savorboard;dotnetcore</Authors>
     <RepositoryUrl>https://github.com/dotnetcore/CAP</RepositoryUrl>
     <RepositoryType>git</RepositoryType>
     <PackageIconUrl>https://avatars2.githubusercontent.com/u/19404084</PackageIconUrl>