docs: Update Sample App link in README.md (#39)

Author: frederikprijck

README.md

@@ -10,7 +10,7 @@
 ## Documentation
 
 Composable UI building blocks for MFA enrollment and verification on iOS, built with SwiftUI Compose. This library provides ready-to-use components that integrate seamlessly with Auth0's authentication flows.
-- [Sample App](https://github.com/atko-cic/ui-components-ios/tree/main/AppUIComponents)
+- [Sample App](https://github.com/auth0/ui-components-ios/tree/main/AppUIComponents)
 - [API Documentation](https://github.com/auth0/ui-components-ios/blob/main/Documentation.docc/Documentation.md)
 - [Theme System](https://github.com/auth0/ui-components-ios/blob/main/Documentation.docc/ThemeSystem.md) — customise colours, typography, spacing, radii, and component sizes