From the article:

B) Configure your app/config/parameters.yml File

This file should not be deployed, but managed through the automatic utilities provided by Symfony.

We should better explain what the "automatic utilities" are. Afaik, it's only the incenteev parameter handler that's included in the SE? Or is there something from Symfony itself that handles his.

The step is also a bit strange as it only tells what not to do. Nothing explains what the user needs to do.

This was issue was submitted by a user on a dutch forum