Remove ToS and redirect to the webpage (#12279)
We are removing the ToS from the documentation and redirecting to the
ToS on the webpage: https://about.readthedocs.com/terms-of-service/
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:books: Documentation previews :books:
- User's documentation (`docs`):
https://docs--12279.org.readthedocs.build/12279/
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- Developer's documentation (`dev`):
https://dev--12279.org.readthedocs.build/12279/
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