fix link

Author: asudbring

articles/aks/concepts-network.md

@@ -213,7 +213,7 @@ The application routing addon is the recommended way to configure an Ingress con
 
 * SSL termination with certificates stored in Azure Key Vault.
 
-For more information about the application routing addon, see [Managed NGINX ingress with the application routing add-on](app-routing-addon.md).
+For more information about the application routing addon, see [Managed NGINX ingress with the application routing add-on](app-routing.md).
 
 ### Client source IP preservation