When I comment a code-block with
<!-- language: lang-yaml --> the page is generated with the right css-class
lang-yaml but it has no effect. There is no syntax highlighting for YAML.
security: encoders: Symfony\Component\Security\Core\User\User: algorithm: bcrypt cost: 12 BackOfficeBundle\Entity\Administrateur: algorithm: bcrypt BackOfficeBundle\Entity\Collaborateur: algorithm: bcrypt
As described here YAML is in the supported list (as an extension). Maybe extensions aren't loaded by default?
But if you look here YAML is not in the supported list. YAML is already supported by Google Prettify: https://github.com/google/code-prettify/blob/master/src/lang-yaml.js.