Updated DataGrid (markdown)

DataGrid.md

@@ -8,14 +8,14 @@ The datagrid control is contained in a separate assembly, Xceed.Wpf.DataGrid, wh
 
 Note: You can find complete documentation of the datagrid API [here](https://xceed.com/wp-content/documentation/xceed-toolkit-plus-for-wpf/webframe.html#Datagrid%20control.html). 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.
 
-See the [Advanced DataGrid](Advanced-DataGrid) page for a list of differences between the Toolkit's datagrid and the advanced edition, Xceed DataGrid for WPF.
+See the [[Advanced DataGrid|https://github.com/xceedsoftware/wpftoolkit/wiki/Advanced-DataGrid]] page for a list of differences between the Toolkit's datagrid and the advanced edition, Xceed DataGrid for WPF.
 
 ![](DataGrid_grid.jpg)
 
-## Usage
+### Usage
 
 **XAML**
-{{
+```
 <sample:DemoView x:Class="Samples.Modules.DataGrid.Views.HomeView"
                  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"  
@@ -59,10 +59,10 @@ See the [Advanced DataGrid](Advanced-DataGrid) page for a list of differences be
         </xcdg:DataGridControl>
     </Grid>
 </sample:DemoView>
-}}
+```
 
 **Code behind**
-{{
+```
 using Microsoft.Practices.Prism.Regions;
 using Samples.Infrastructure.Controls;
 using Xceed.Wpf.DataGrid.Samples.SampleData;
@@ -91,7 +91,7 @@ namespace Samples.Modules.DataGrid.Views
 
   }
 }
-}}
+```
 
-**Support this project, check out the [Plus Edition](https://xceed.com/xceed-toolkit-plus-for-wpf/).**
----
+---
+**Support this project, check out the [Plus Edition](https://xceed.com/xceed-toolkit-plus-for-wpf/).**