Modified the DataGrid reference link

Author: Backiaraj

README.md

@@ -1,2 +1,5 @@
 # How to customize style of the scroll viewer in wpf datagrid?
-This example illustrates how to customize style of the scroll viewer in wpf datagrid
+
+This example illustrates how to customize style of the scroll viewer in [WPF DataGrid](https://www.syncfusion.com/wpf-ui-controls/datagrid) (SfDataGrid).
+
+You can customize the style of scroll viewer in which [WPF DataGrid](https://www.syncfusion.com/wpf-ui-controls/datagrid) (SfDataGrid) is loaded. But while scrolling using mouse wheel, the header will also be scrolled with records. You can overcome this behavior by binding the [CanContentScroll](https://docs.microsoft.com/en-us/dotnet/api/system.windows.controls.scrollviewer.cancontentscroll?view=netframework-4.7.2#System_Windows_Controls_ScrollViewer_CanContentScroll) property of [ScrollViewer](https://docs.microsoft.com/en-us/dotnet/api/system.windows.controls.scrollviewer?view=netframework-4.7.2).