Comment cref updates in test app

Author: shweaver-MSFT

UnitTests/UnitTests.UWP/Helpers/JsonObjectSerializer.cs

@@ -11,7 +11,7 @@ namespace UnitTests.Helpers
 {
     /// <summary>
     /// This is a Serializer which should mimic the previous functionality of 6.1.1 release of the Toolkit with Newtonsoft.Json.
-    /// Based on <see cref="Microsoft.Toolkit.Helpers.Uwp.IObjectSerializer"/>.
+    /// Based on <see cref="Microsoft.Toolkit.Uwp.Helpers.IObjectSerializer"/>.
     /// </summary>
     [Obsolete]
     internal class JsonObjectSerializer : IObjectSerializer

UnitTests/UnitTests.UWP/Helpers/SystemTextJsonSerializer.cs

@@ -10,7 +10,7 @@ namespace UnitTests.Helpers
 {
     /// <summary>
     /// Example class of writing a new <see cref="IObjectSerializer"/> that uses System.Text.Json.
-    /// Based on <see cref="Microsoft.Toolkit.Helpers.Uwp.IObjectSerializer"/>.
+    /// Based on <see cref="Microsoft.Toolkit.Uwp.Helpers.IObjectSerializer"/>.
     /// </summary>
     [Obsolete]
     internal class SystemTextJsonSerializer : IObjectSerializer

UnitTests/UnitTests.UWP/Helpers/Test_ApplicationDataStorageHelper.cs

@@ -69,7 +69,7 @@ public void Test_StorageHelper_LegacyDateTestFailure()
 
         /// <summary>
         /// The <see cref="Microsoft.Toolkit.Helpers.SystemSerializer"/> doesn't support complex types, since it just passes through directly.
-        /// We'll get the argument exception from the <see cref="ApplicationDataContainer"/> API.
+        /// We'll get the argument exception from the <see cref="Windows.Storage.ApplicationDataContainer"/> API.
         /// </summary>
         [TestCategory("Helpers")]
         [TestMethod]