924633 - Added the Trademark Symbol in readme files

Syncfusion®
Essential®
Essential Studio®

Author: TamilpriyaTS

README.md

@@ -2,7 +2,7 @@
 
 A quick start Angular project that shows how to group nodes and connectors in an Angular Diagram component. This project includes code snippets to create and update groups dynamically. It also includes code snippets to add annotations to a group and create a nested group.
 
-Refer to the grouping documentation for the Syncfusion Angular Diagram component: 
+Refer to the grouping documentation for the Syncfusion® Angular Diagram component: 
 https://ej2.syncfusion.com/angular/documentation/diagram/group
 
 Check out this online grouping example for the Angular Diagram component: