Fix nuspec metadata.

yfakariya · yfakariya · commit 00a4ccf89092 · 2016-10-16T19:21:20.000+09:00
diff --git a/MsgPack.nuspec b/MsgPack.nuspec
@@ -19,6 +19,7 @@ This package provides MessagePack serialization/deserialization APIs. This pacak
       <group targetFramework=".NETFramework4.6" />
       <group targetFramework=".NETFramework4.5" />
       <group targetFramework=".NETFramework3.5" />
+      <group targetFramework="Silverlight5" />
       <group targetFramework="WindowsPhone8.0" />
       <group targetFramework="MonoAndroid1.0" />
       <group targetFramework="Xamarin.iOS1.0" />
