Fix #6542 - correct namespace of [TempData]

src/Microsoft.AspNetCore.Mvc.ViewFeatures/TempDataAttribute.cs

@@ -3,14 +3,15 @@
 
 using System;
 
-namespace Microsoft.AspNetCore.Mvc.ViewFeatures
+namespace Microsoft.AspNetCore.Mvc
 {
     /// <summary>
-    /// Properties with the <see cref="TempDataAttribute"/> are stored in the <see cref="TempDataDictionary"/>.
+    /// Properties decorated with <see cref="TempDataAttribute"/> will have their values stored in
+    /// and loaded from the <see cref="ViewFeatures.TempDataDictionary"/>. <see cref="TempDataAttribute"/>
+    /// is supported on properties of Controllers, Razor Pages, and Razor Page Page Models.
     /// </summary>
-    [AttributeUsage(AttributeTargets.Property, Inherited = false, AllowMultiple = false)]
+    [AttributeUsage(AttributeTargets.Property, Inherited = true, AllowMultiple = false)]
     public sealed class TempDataAttribute : Attribute
     {
-
     }
 }