[WCM][Twig][Form] Moved twig.form.resources to a higher level

| Q             | A
| ------------- | ---
| Doc fix?      | no
| New docs?     | no, https://github.com/symfony/symfony/pull/11343
| Applies to    | >= 2.6
| Fixed tickets | -
You should add a line break after the first word that crosses the 72th character