docs(elevatedview): Corrections after review.

doc/articles/features/ElevatedView.md

@@ -1,13 +1,13 @@
 # ElevatedView
-On many design language like _Material Design_, there's a notion of elevation where a portion of the UI should be presented as been _elevated_ over the rest of the content.
+On many design languages like _Material Design_, there's a notion of elevation where a portion of the UI should be presented has been _elevated_ over the rest of the content.
 
 In this case, the UWP proposed solution can't work on all platforms because of technical limitations. To address this problem, Uno provides a control called `ElevatedView`, able to produce a similar result on all platforms, providing an elevated result.
 
 This control is very useful to create cards with both rounded corners and elevated effect - which could be challenging to produce on some platforms.
 
 ## How to use the `ElevatedView`
 
-Fist you need to add the `toolkit` namespace in your XAML file:
+First you need to add the `toolkit` namespace in your XAML file:
 
 ```
 xmlns:toolkit="using:Uno.UI.Toolkit"
@@ -30,6 +30,8 @@ Will produce the following result:
 
 ![ElevatedView sample](../Assets/features/elevatedview/elevatedview-sample.png)
 
+> **ATTENTION FOR UWP**: When there is an error seeing the `<toolkit:ElevatedView>` on UWP, the common mistake is to forget to include the `Uno.UI` package for all platforms, including UWP. On this platform, the only available component is the Toolkit.
+
 ## Settings
 
 You can set the following properties: