Update configuration.md

Author: lovasoa

configuration.md

@@ -137,5 +137,5 @@ We have a guide on [how to create migrations](https://sql.datapage.app/your-firs
 ## Custom URL routes
 
 By default, SQLPage encourages a simple mapping between the URL and the SQL file that is executed.
-You can also create custom URL routes by creating [`404.sql` files](http://localhost:8080/your-first-sql-website/custom_urls.sql).
-If you need advanced routing, you can also [add a reverse proxy in front of SQLPage](https://sql.datapage.app/reverse_proxy.sql).
+You can also create custom URL routes by creating [`404.sql` files](https://sql.datapage.app/your-first-sql-website/custom_urls.sql).
+If you need advanced routing, you can also [add a reverse proxy in front of SQLPage](https://sql.datapage.app/your-first-sql-website/nginx.sql).