update readme

Author: avanigupta

examples/MauiAppConfigDemo/README.md

@@ -7,15 +7,14 @@ This project demonstrates how to integrate Azure App Configuration with a .NET M
 A simple travel booking app that demonstrates:
 - **Hybrid Configuration**: Snapshot (stable settings) + dynamic key-values
 - **Feature Flags**: Server-controlled feature toggles
-- **Configuration Refresh**: Automatic background refresh every 1 minute
 - **Cross-Platform**: Runs on Android, iOS, macOS Catalyst, and Windows
 
 ## Prerequisites
 
 - .NET 9.0 SDK
 - Visual Studio 2022 or Visual Studio Code with .NET MAUI workload
 - Azure subscription with App Configuration resource
-- Azure Front Door instance configured for your App Configuration
+- Azure Front Door instance configured for your App Configuration. Follow instructions at `https://aka.ms/appconfig/afdsetup`
 
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