Update README.md

VimalaThirumalaikumar · web-flow · commit c83a02c458ab · 2025-07-20T21:38:27.000+05:30
diff --git a/README.md b/README.md
@@ -143,4 +143,5 @@ private void HyperlinkButton_Click(object sender, RoutedEventArgs e)
  
 ![Drill_Down_Output](https://github.com/SyncfusionExamples/How-to-use-the-drill-down-functionality-in-WinUI-Charts/assets/105482474/21c5a8f4-a581-49c4-869e-30cabf3822ad)
 
-KB link -[how to use the drill down functionality in winui charts](https://www.syncfusion.com/code-examples/how-to-use-the-drill-down-functionality-in-winui-charts).
+KB link - [How to use the drill down functionality in winui charts](https://support.syncfusion.com/kb/article/13011/how-to-use-the-drill-down-functionality-in-winui-chart-sfcircularchart).
+
