ReadMe updated with KB link

jayaleshwari · web-flow · commit f3f9aad83386 · 2021-04-30T10:15:52.000+05:30
diff --git a/README.md b/README.md
@@ -1,2 +1 @@
-# update-checkbox-state-programmatically-treeview-xamarin
-How to update checkbox state programmatically in Xamarin.Forms TreeView (SfTreeView)
+**[View document in Syncfusion Xamarin Knowledge base](https://www.syncfusion.com/kb/12553/how-to-update-checkbox-state-programmatically-in-xamarin-forms-treeview-sftreeview)**

Original file line number	Diff line number	Diff line change
`@@ -1,2 +1 @@`
`1`		`-# update-checkbox-state-programmatically-treeview-xamarin`
`2`		`-How to update checkbox state programmatically in Xamarin.Forms TreeView (SfTreeView)`
	`1`	`+[View document in Syncfusion Xamarin Knowledge base](https://www.syncfusion.com/kb/12553/how-to-update-checkbox-state-programmatically-in-xamarin-forms-treeview-sftreeview)`