Update Microsoft.Toolkit.Uwp.UI.Animations/Builders/AnimationBuilder.cs

Co-authored-by: Michael Hawker MSFT (XAML Llama) <24302614+michael-hawker@users.noreply.github.com>

Author: Arlodotexe

Microsoft.Toolkit.Uwp.UI.Animations/Builders/AnimationBuilder.cs

@@ -49,7 +49,7 @@ private AnimationBuilder()
         /// For instance:
         /// <code>
         /// var animation = AnimationBuilder.Create().Opacity(0, 1).Size(1.2, 1);
-        /// 
+        ///
         /// animation.Start(MyButton);
         /// animation.Start(MyGrid);
         /// </code>