Update IsNonClientRegionSupportEnabled.md

include feature flag in remarks, update interface to match sample code, reformat lines

Author: abbychoii

specs/IsNonClientRegionSupportEnabled.md

@@ -1,25 +1,32 @@
 # Background
 
-To improve the developer experience for customizing non-client regions, WebView2 is working to support using DOM elements as non-client regions. We currently have 
-limited support for title bar aka draggable regions and are working on building out support for caption controls and resize regions. 
-
-For security and flexibility, we want developers to be able to enable or disable all custom non-client functionality per WebView. Non-client functionality will affect 
-that app window’s size and position so it’s important that developers can definitively toggle access. This can be achieved in a limited way using a feature flag, but 
-feature flags are applied per WebView2 environment, thus, an API on the WebView2 to enable/disable non-client support via a setting is the better solution.
+To improve the developer experience for customizing non-client regions, WebView2 is 
+working to support using DOM elements as non-client regions. We currently have limited 
+support for title bar aka draggable regions and are working on building out support 
+for caption controls and resize regions. 
+
+For security and flexibility, we want developers to be able to enable or disable all 
+custom non-client functionality per WebView. Non-client functionality will affect that 
+app window’s size and position so it’s important that developers can definitively 
+toggle access. This can be achieved in a limited way using a feature flag, but feature 
+flags are applied per WebView2 environment, thus, an API on the WebView2 to enable/disable 
+non-client support via a setting is the better solution.
 
 # Description
-`IsNonClientRegionSupportEnabled` defaults to `FALSE`. Disabling/Enabling `IsNonClientRegionSupportEnabled` takes effect after the next navigation. Currently, 
-draggable regions is the only non-client experience we have implemented. Eventually, this setting will expand to enable other non-client functionality, such as resize 
-and caption controls. 
-
-When the setting is set to `TRUE`, then the following non-client region support for the top level document will be enabled:  
+`IsNonClientRegionSupportEnabled` defaults to `FALSE`. Disabling/Enabling 
+`IsNonClientRegionSupportEnabled` takes effect after the next navigation. Currently, draggable 
+regions is the only non-client experience we have implemented. Eventually, this setting will 
+expand to enable other non-client functionality, such as resize and caption controls. 
 
+When the setting is set to `TRUE`, then the following non-client region support for the top 
+level document will be enabled:  
 * Web pages will be able to use the `app-region` CSS style. 
-
-* Draggable Regions declared with the CSS style `app-region: drag` will support title bar functionality, for example, the dragging of the app window, the title bar context menu upon right click, and the maximizing/ restoring of the window size upon double click of the html element. 
+* Draggable Regions declared with the CSS style `app-region: drag` will support title bar 
+functionality, for example, the dragging of the app window, the title bar context menu upon 
+right click, and the maximizing/restoring of the window size upon double click of the html 
+element. 
 
 When set to `FALSE`, then all non-client region support will be disabled.  
-
 * Web pages will not be able to use the `app-region` CSS style. 
 
 # Examples
@@ -89,8 +96,9 @@ private void SetNonClientRegionSupport(CoreWebView2 sender, CoreWebView2Navigati
 ```
 
 # Remarks
-If the feature flag is used to enable draggable regions in additional browser arguments, draggable 
-region support will remain enabled even if the `IsNonClientRegionSupportEnabled` setting is `FALSE`. 
+If the feature flag (`msWebView2EnableDraggableRegions`) is used to enable draggable regions in 
+additional browser arguments, draggable region support will remain enabled even if the 
+`IsNonClientRegionSupportEnabled` setting is `FALSE`. 
 * Note: The feature flag is experimental and should not be used in production.
 
 # API Notes
@@ -104,7 +112,7 @@ Non-client regions are HTML elements that are marked with the css style `app-reg
 ```cpp
 /// This is the ICoreWebView2Settings Staging interface.
 [uuid(436CA5E2-2D50-43C7-9735-E760F299439E), object, pointer_default(unique)]
-interface ICoreWebView2Settings9 : ICoreWebView2Settings8 {
+interface ICoreWebView2Settings12 : ICoreWebView2Settings11 {
   /// `IsNonClientRegionSupportEnabled` property enables web pages to use the 
   /// `app-region` CSS style. Disabling/Enabling the `IsNonClientRegionSupportEnabled`
   /// takes effect after the next navigation. Defaults to `FALSE`.
@@ -128,5 +136,6 @@ interface ICoreWebView2Settings9 : ICoreWebView2Settings8 {
 ```
 
 # Appendix
-We considered implementing the APIs in the ControllerOptions class, which would establish whether non-client regions would be supported for the life of the webview at 
-creation. To provide greater flexibility of use, we decided to implement it as a setting.
+We considered implementing the APIs in the ControllerOptions class, which would establish 
+whether non-client regions would be supported for the life of the webview at creation. To 
+provide greater flexibility of use, we decided to implement it as a setting.