chore: fix broken link (#44)

Author: IvanDanchev

README.md

@@ -1,6 +1,6 @@
 # Admin Dashboard sample app powered by Progress ® Telerik ® UI for ASP.NET Core
 
-Admin Dashboard is a sample application created with Progress ® Telerik ® UI for ASP.NET Core, Progress' [ASP.NET Core wrappers](http://www.telerik.com/aspnet-core) taking care of the common functionality of your application, while leaving you with more time to work on the business logic of the app.
+Admin Dashboard is a sample application created with Progress ® Telerik ® UI for ASP.NET Core, Progress' [ASP.NET Core wrappers](http://www.telerik.com/aspnet-core-ui) taking care of the common functionality of your application, while leaving you with more time to work on the business logic of the app.
 
 The app demonstrates how easy it is to provide data visualization and management functionality to your users and how you can integrate several Telerik UI for ASP.NET Core controls with just a few lines of code.