Call to action

blocks:
  - type: cta
    heading: {} # (optional)
      surtitle: '' # string (optional)
      title: '' # string (optional)
      text: '' # markdown (optional)
    ctas: []
      text: '' # string
      url: '' # url
      blank: false # boolean (optional)
      lang: '' # code lang (optional)
    background: false # boolean (optional)