Updated DataGrid (markdown)

DataGrid.md

@@ -7,7 +7,7 @@ This datagrid was the first datagrid for WPF. It was released in 2007 and has be
 
 The datagrid control is contained in a separate assembly, Xceed.Wpf.DataGrid, which must be added to your project and then referenced where necessary.
 
-Note: You can find complete documentation of the datagrid API [here](https://xceed.com/documentation/xceed-datagrid-for-wpf/). You can also find detailed descriptions of how the various classes work together in the [Xceed DataGrid for WPF documentation](https://xceed.com/wp-content/documentation/xceed-datagrid-for-wpf/webframe.html), but please bear in mind that that product's documentation covers features that may not be available in this Toolkit version.
+Note: You can find complete documentation of the datagrid API [here](https://xceed.com/documentation/xceed-datagrid-for-wpf/). You can also find detailed descriptions of how the various classes work together in the [Xceed DataGrid for WPF documentation](https://xceed.com/documentation/xceed-datagrid-for-wpf/), but please bear in mind that that product's documentation covers features that may not be available in this Toolkit version.
 
 See the [[Advanced DataGrid]] page for a list of differences between the Toolkit's datagrid and the advanced edition, Xceed DataGrid for WPF.