update header yaml

UserInterface/Accessibility/README.md

@@ -1,6 +1,6 @@
 ---
 name: Xamarin.Forms - Accessibility
-description: "Demonstrates how to use the AutomationProperties class, so that a screen reader can speak about the user interface elements on the (UI)"
+description: "How to use the AutomationProperties class so that a screen reader can speak about the visible user interface elements (UI)"
 page_type: sample
 languages:
 - csharp

UserInterface/ActivityIndicatorDemos/README.md

@@ -17,4 +17,4 @@ The ActivityIndicator control indicates to users that the application is busy pe
 
 For more information about this sample, see [Xamarin.Forms ActivityIndicator](https://docs.microsoft.com/xamarin/xamarin-forms/user-interface/activityindicator).
 
-![Screenshot of sample ActivityIndicator Demos application](Screenshots/02ActivityIndicatorDemo.png "Screenshot of sample ActivityIndicator Demos application")
+![Sample ActivityIndicator demo application](Screenshots/02ActivityIndicatorDemo.png "Sample ActivityIndicator demo application")

UserInterface/Animation/Basic/README.md

@@ -15,6 +15,6 @@ urlFragment: userinterface-animation-basic
 
 The `ViewExtensions` class provides extension methods that can be used to construct simple animations. This sample demonstrates creating and canceling animations using the `ViewExtensions` class.
 
-For more information about the sample see [Simple Animations](https://docs.microsoft.com/en-us/xamarin/xamarin-forms/user-interface/animation/simple).
+For more information about the sample see [Simple Animations](https://docs.microsoft.com/xamarin/xamarin-forms/user-interface/animation/simple).
 
-![Basic Animation application screenshot](Screenshots/01All.png "Basic Animation application screenshot")
+![Basic snimation application](Screenshots/01All.png "Basic Animation application screenshot")

UserInterface/Animation/Custom/README.md

@@ -1,6 +1,6 @@
 ---
 name: Xamarin.Forms - Custom Animations
-description: "The Animation class is the building block of all Xamarin.Forms animations, with the extension methods in the ViewExtensions class creating... (UI)"
+description: "The Animation class is the building block of all Xamarin.Forms animations, with the extension methods in the ViewExtensions class... (UI)"
 page_type: sample
 languages:
 - csharp

UserInterface/Animation/Easing/README.md

@@ -1,6 +1,6 @@
 ---
 name: Xamarin.Forms - Easing Functions
-description: "Xamarin.Forms includes an Easing class that allows you to specify a transfer function that controls how animations speed up or slow down (UI)"
+description: "Xamarin.Forms includes an Easing class that allows you to specify a transfer function that controls how animations speed up/slow down (UI)"
 page_type: sample
 languages:
 - csharp

UserInterface/BindablePicker/README.md

@@ -17,4 +17,4 @@ This sample demonstrates how to use a `Picker` to select a color from a list of
 
 For more information about this sample see [Setting a Picker's ItemsSource Property](https://docs.microsoft.com/xamarin/xamarin-forms/user-interface/picker/populating-itemssource).
 
-![Bindable Picker application screenshot](Screenshots/01All.png "Bindable Picker application screenshot")
+![Bindable Picker demo screenshot](Screenshots/01All.png "Bindable Picker demo screenshot")

UserInterface/BusinessTumble/README.md

@@ -1,6 +1,6 @@
 ---
 name: 'Xamarin.Forms - Layout Sample: The Business Tumble'
-description: "This sample, inspired by a corporate social media profile app, demonstrates how to build similar layouts across StackLayout, RelativeLayout, (UI)"
+description: "This sample, inspired by a corporate social media profile app, demonstrates how to build app layouts (UI)"
 page_type: sample
 languages:
 - csharp