text: Title: [DOCS] Example in the API reference does not work
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  ## Description
  
  Hi everybody! I try to produce (and publish!) one page containing a placeholder with a text-plugin and a static-alias with a text-plugin  via cms.api but the example at https://docs.django-cms.org/en/latest/reference/api_references.html#example-workflows is outdated. (I need to do this for some hundred django-sites, and cannot do it by hand.) I tried hard but couldn't find an example that explains the principles behind the new way of versioning.
  
  I  have read that page and I agree on the part saying "This is done in cms.api and not on the models and managers, because the direct API via models and managers is slightly counterintuitive for developers." But the given example does NOT work.
  
  (dabels)
  
  ## Reference
  
  * https://docs.django-cms.org/en/latest/reference/api_references.html#example-workflows
  
  ## Do you want to help fix this issue?
  
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  * [ ] Yes, I want to help fix this issue and I will join the channel #pr-reviews on [the Discord Server](https://discord-pr-review-channel.django-cms.org) to confirm with the community that a PR is welcome.
  * [ ] No, I only want to report the issue.
  