Fixed error in namespace.

src/Services/Ordering/Ordering.Domain/AggregatesModel/OrderAggregate/OrderStatus.cs

@@ -1,7 +1,7 @@
 namespace Microsoft.eShopOnContainers.Services.Ordering.Domain.AggregatesModel.OrderAggregate
 {
     using global::Ordering.Domain.Exceptions;
-    using Seedwork;
+    using Microsoft.eShopOnContainers.Services.Ordering.Domain.SeedWork;
     using System;
     using System.Collections.Generic;
     using System.Linq;