Changed group box title (dotnet#2670)

Author: Ron Petrusha

xml/System.Windows.Controls/GroupBox.xml

@@ -39,7 +39,7 @@
 [!INCLUDE[setting-a-visual-property](~/includes/visual-property-note.md)]  
   
 ## Examples  
- The following example defines a <xref:System.Windows.Controls.GroupBox> control that is titled **My Employee Info**. The control encloses a <xref:System.Windows.Controls.TabControl> and a <xref:System.Windows.Controls.Button> in a <xref:System.Windows.Controls.StackPanel>. The example sets the <xref:System.Windows.Controls.HeaderedContentControl.Header%2A> property to a <xref:System.Windows.Controls.Label>.  
+ The following example defines a <xref:System.Windows.Controls.GroupBox> control that is titled **Employee Data**. The control encloses a <xref:System.Windows.Controls.TabControl> and a <xref:System.Windows.Controls.Button> in a <xref:System.Windows.Controls.StackPanel>. The example sets the <xref:System.Windows.Controls.HeaderedContentControl.Header%2A> property to a <xref:System.Windows.Controls.Label>.  
   
  [!code-xaml[GroupBoxExample#1](~/samples/snippets/csharp/VS_Snippets_Wpf/GroupBoxExample/CSharp/Page1.xaml#1)]