make deploy fails because of two unsupported options

[matentzn]

make deploy fails because of two unsupported options in mkdocs.yml:

anchor_linenums: true

and

alternate_style: true

markdown_extensions:
  - pymdownx.highlight:
      anchor_linenums: true
  - pymdownx.inlinehilite
  - pymdownx.snippets
  - pymdownx.superfences
  - pymdownx.tabbed:
      alternate_style: true
  - pymdownx.critic
  - pymdownx.caret
  - pymdownx.keys
  - pymdownx.mark
  - pymdownx.tilde

Removing them makes the build pass fine:

markdown_extensions:
  - pymdownx.highlight:
  - pymdownx.inlinehilite
  - pymdownx.snippets
  - pymdownx.superfences
  - pymdownx.tabbed:
  - pymdownx.critic
  - pymdownx.caret
  - pymdownx.keys
  - pymdownx.mark
  - pymdownx.tilde