fix: missing .md format in links

Author: Ariansdf

_changelog/2.4.0-upgrade.md

@@ -369,7 +369,7 @@ The application now exposes a `/health` endpoint. The `app` container includes a
 polls this endpoint. No action is required unless you have external monitoring or load-balancer probes configured — in
 that case update them to use `GET /health`.
 
-See the new [Health Check documentation](../_documentation/5-Deployment/6-Health-Check) for full details.
+See the new [Health Check documentation](../_documentation/5-Deployment/6-Health-Check.md) for full details.
 
 ### Summary checklist
 

_changelog/2.4.0.md

@@ -19,7 +19,7 @@
 
 - Allow `DB_BACKUP_INTERVAL` to be set to `never`, to disable automatic database backups. This is useful for users who want to manage their own backup strategy or do not want to use the built-in backup functionality.
 - Adds a new `DB_BACKUP_INTERVAL_ARGS` environment variable, that works in tandem with `DB_BACKUP_INTERVAL`, to allow more fine-grained control over the database backup process. Read more in the [Dot Env documentation](/architecture/10-dot%20Env)
-- Adds new `APP_TRUSTED_PROXIES` environment variable, to the app to run behind a reverse proxy with SSL termination. Read more in the [Dot Env documentation](../_documentation/3-architecture/10-dot%20Env#APP_TRUSTED_PROXIES)
+- Adds new `APP_TRUSTED_PROXIES` environment variable, to the app to run behind a reverse proxy with SSL termination. Read more in the [Dot Env documentation](../_documentation/3-architecture/10-dot%20Env.md#APP_TRUSTED_PROXIES)
 - `php artisan check:model-status` is now `php artisan ai:models:check-status`, to be more consistent with the naming of other AI related commands. The old command name is still available as an alias, but it is recommended to use the new command name.
 
 ### Bugfix