Address PR comments

src/Microsoft.AspNetCore.Mvc.Core/ModelBinding/BindNeverAttribute.cs

@@ -6,7 +6,9 @@ using System;
 namespace Microsoft.AspNetCore.Mvc.ModelBinding
 {
     /// <summary>
-    /// Indicates that the property should be excluded from model binding.
+    /// Indicates that a property should be excluded from model binding. When applied to a property, the model binding
+    /// system excludes that property. When applied to a type, the model binding system excludes all properties of that
+    /// type.
     /// </summary>
     [AttributeUsage(AttributeTargets.Class | AttributeTargets.Property, AllowMultiple = false, Inherited = true)]
     public sealed class BindNeverAttribute : BindingBehaviorAttribute

src/Microsoft.AspNetCore.Mvc.Core/ModelBinding/BindRequiredAttribute.cs

@@ -6,7 +6,9 @@ using System;
 namespace Microsoft.AspNetCore.Mvc.ModelBinding
 {
     /// <summary>
-    /// Indicates that the property is required for model binding.
+    /// Indicates that a property is required for model binding. When applied to a property, the model binding system
+    /// requires a value for that property. When applied to a type, the model binding system requires values for all
+    /// properties of that type.
     /// </summary>
     [AttributeUsage(AttributeTargets.Class | AttributeTargets.Property, AllowMultiple = false, Inherited = true)]
     public sealed class BindRequiredAttribute : BindingBehaviorAttribute

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

@@ -6,13 +6,15 @@ using System;
 namespace Microsoft.AspNetCore.Mvc
 {
     /// <summary>
-    /// Indicates the class is a view component and optionally specifies the component's name.
+    /// Indicates the class and all subclasses are view components. Optionally specifies a view component's name. If
+    /// defining a base class for multiple view components, associate this attribute with that base.
     /// </summary>
     [AttributeUsage(AttributeTargets.Class, AllowMultiple = false, Inherited = true)]
     public class ViewComponentAttribute : Attribute
     {
         /// <summary>
-        /// Gets or sets the name of the view component.
+        /// Gets or sets the name of the view component. Do not supply a name in an attribute associated with a view
+        /// component base class.
         /// </summary>
         public string Name { get; set; }
     }