add a new job to deploy on pages

# Job from g2s hub. See https://go2scale.gitlab.io/hub/ for more informations

pages:

  stage: production

  script:

    - echo 'Deploying on Gitlab pages'

  needs:

    - job: documentation

      artifacts: true

  artifacts:

    paths:

      - public

  only:

    - master

  except:

    variables:

      - $DOCUMENTATION_DISABLE || $PAGES_DISABLE