967323: Update blazor-toc.html

Author: SubathraKaliamoorthy

blazor-toc.html

@@ -295,7 +295,7 @@
 			        	<a href="/blazor/common/extend-and-customize-components">Extend and Customize the Syncfusion Components</a>
 		        	</li>
 					<li>
-			        	<a href="/blazor/common/add-blazor-component-to-the-toolbox">Add Blazor Component to the toolbox</a>
+			        	<a href="/blazor/common/how-to/add-blazor-component-to-the-toolbox">Add Blazor Component to the toolbox</a>
 		        	</li>
 					<li>
 						<a href="/blazor/common/how-to/add-blazor-component-on-existing-aspnet-core-mvc-app">Add Blazor Components on Existing ASP.NET Core MVC Application</a>