924633 - Added the Trademark Symbol in readme files

Syncfusion®
Essential®
Essential Studio®

Author: TamilpriyaTS

README.md

@@ -13,4 +13,4 @@ Documentation: https://help.syncfusion.com/wpf/diagram/getting-started
 To run this application, you need to first clone or download the ‘create a feature rich wpf diagramming app in 2 minutes’ repository and open it in Visual Studio 2019 IDE. Then, build and run your project to view the output.
 
 ## Further help
-For more help, check the [Syncfusion WPF documentation](https://help.syncfusion.com/wpf/welcome-to-syncfusion-essential-wpf).
+For more help, check the [Syncfusion® WPF documentation](https://help.syncfusion.com/wpf/welcome-to-syncfusion-essential-wpf).