Fix links in App Service Managed Certificate article

Updated relative links to point to the documentation for App Service front ends and workers.

Author: yutanglin16

articles/app-service/app-service-managed-certificate-changes-july-2025.md

@@ -13,7 +13,7 @@ ms.date: 07/28/2025
 This article summarizes updates to App Service Managed Certificates (ASMC) introduced in July 2025 and November 2025. With the November 2025 update, ASMC now remains supported even if the site is not publicly accessible, provided all other requirements are met. Details on requirements, exceptions, and validation steps are included below.
 
 ## November 2025 update
-Starting November 2025, App Service now allows DigiCert's requests to the `https://<hostname>/.well-known/pki-validation/fileauth.txt` endpoint, even if the site blocks public access. When DigiCert tries to reach the validation endpoint, [App Service front ends](https://learn.microsoft.com/archive/msdn-magazine/2017/february/azure-inside-the-azure-app-service-architecture#front-end) present the token, and the request terminates at the front end layer. DigiCert's request does not reach the [workers](https://learn.microsoft.com/archive/msdn-magazine/2017/february/azure-inside-the-azure-app-service-architecture#web-workers) running the application.
+Starting November 2025, App Service now allows DigiCert's requests to the `https://<hostname>/.well-known/pki-validation/fileauth.txt` endpoint, even if the site blocks public access. When DigiCert tries to reach the validation endpoint, [App Service front ends](/archive/msdn-magazine/2017/february/azure-inside-the-azure-app-service-architecture#front-end) present the token, and the request terminates at the front end layer. DigiCert's request does not reach the [workers](/archive/msdn-magazine/2017/february/azure-inside-the-azure-app-service-architecture#web-workers) running the application.
 
 This behavior is now the default for ASMC issuance for initial certificate creation and renewals. Customers do not need to specifically allow DigiCert's IP addresses.