Added KB link

Author: Harsha-SF4223

README.md

@@ -82,13 +82,15 @@ public class BorderColorConverter : IValueConverter
     }
 }
 ```
+### See also
+
+[How to customize the data label in WinUI Chart (SfCartesianChart)?](https://help.syncfusion.com/winui/cartesian-charts/datalabels#template)
+
+[How to customize the appearance in WinUI Chart (SfCartesianChart)?](https://help.syncfusion.com/winui/cartesian-charts/appearance)
 
 ### Output
 
 ![Output](https://user-images.githubusercontent.com/53489303/201815327-81885641-6851-406b-985a-fa5c11532e0c.png)
 
-### See also
-
-[How to customize the data label in WinUI Chart (SfCartesianChart)?](https://help.syncfusion.com/winui/cartesian-charts/datalabels#template)
 
-[How to customize the appearance in WinUI Chart (SfCartesianChart)?](https://help.syncfusion.com/winui/cartesian-charts/appearance)
+KB link - [How to add a custom data marker in WinUI Chart (SfCartesianChart)](https://support.syncfusion.com/kb/article/12166/how-to-display-custom-data-marker-in-winui-chart-sfcartesianchart)

WinUI_Chart_CustomDataLabel/MainWindow.xaml

@@ -36,8 +36,7 @@
             </chart:SfCartesianChart.Resources>
 
             <chart:SfCartesianChart.XAxes>
-                <chart:CategoryAxis Header="Time Period" PlotOffsetStart="20" PlotOffsetEnd="20"
-                                    ShowMajorGridLines="False"
+                <chart:CategoryAxis Header="Time Period" PlotOffsetStart="20" PlotOffsetEnd="20"  
                                     AxisLineStyle="{StaticResource lineStyle}"/>
             </chart:SfCartesianChart.XAxes>