[1.0.1] Move documentation URLs to own definition property

Thanks you.

I will do a few changes however.

No need to put this for every components because it is not specific to each link:

    - url: 'https://www.systeme-de-design.gouv.fr/elements-d-interface/composants/accordeon'
      title: 'Accordeon documentation'
      options:
        attributes:
          target: '_blank'
          rel: "noopener external"

It belongs to the template.