[docs] [issue35033] Column or row spanning cells are not implemented.

[Julien Palard]

Julien Palard <julien+python at palard.fr> added the comment:

POC is now a PR: https://github.com/sphinx-doc/sphinx/pull/5559

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue35033>
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