Update ReadMe

Author: mageshyadavm

README.md

@@ -1,2 +1,3 @@
-# xamarin-listview-Asp.NetCore-WebAPI
-Sample showcases how to consume Asp.Net Core Web API service in Xamarin.Forms ListView
+# Learn easy way to consume ASP.NET Core Web API in Xamarin application
+
+This sample demonstrates the easy steps to consume the [ASP.Net Core Web API](https:\ej2services.syncfusion.com\production\web-services\api\Orders) service in Syncfusion Xamarin.Forms [ListView](https://help.syncfusion.com/xamarin/sflistview/getting-started).