US 1889327: Suggestion/warning fixes. (#1306)

* Suggestion/warning fixes.

* Minor edits.

* Minor edits.

* Updated ms.date

* Review edits.

* Review edits.

dotnet-desktop-guide/framework/wpf/advanced/dynamicresource-markup-extension.md

@@ -1,6 +1,7 @@
 ---
 title: "DynamicResource Markup Extension"
 ms.date: "03/30/2017"
+ms.custom: devdivchpfy22
 f1_keywords: 
   - "DynamicResource"
   - "DynamicResourceExtension"
@@ -30,8 +31,8 @@ Provides a value for any [!INCLUDE[TLA2#tla_xaml](../../../includes/tla2sharptla
   
 ## XAML Values  
   
-|||  
-|-|-|  
+| Value | Description |  
+|-------|-------------|  
 |`key`|The key for the requested resource. This key was initially assigned by the [x:Key Directive](/dotnet/desktop/xaml-services/xkey-directive) if a resource was created in markup, or was provided as the `key` parameter when calling <xref:System.Windows.ResourceDictionary.Add%2A?displayProperty=nameWithType> if the resource was created in code.|  
   
 ## Remarks