Merge pull request #253 from mrlacey/live

correct "using statement" to "using directive"

Author: michael-hawker

docs/animations/Expressions.md

@@ -76,10 +76,10 @@ Welcome to the ExpressionBuilder classes! The ExpressionBuilder classes are a C#
 
 ## <a name="setting-up-the-expressionbuilder-classes-with-your-app"></a>Setting up the ExpressionBuilder classes with your app
 
-To use the ExpressionBuilder in your app, add the Microsoft.Toolkit.Uwp.UI.Animations nuget package to your project. Next, within your app project, make sure to add the using statement to leverage the ExpressionBuilder classes:
+To use the ExpressionBuilder in your app, add the Microsoft.Toolkit.Uwp.UI.Animations nuget package to your project. Next, within your app project, make sure to add the using directive to leverage the ExpressionBuilder classes:
 
 ```csharp
-using  Microsoft.Toolkit.Uwp.UI.Animations.Expressions;
+using Microsoft.Toolkit.Uwp.UI.Animations.Expressions;
 ``` 
 
 Once you have the nuget package added to your project, you are all set to start using the ExpressionBuilder classes!