DOC: Fix dangling hyphens.
Dangling hyphens gets rendered with a space, see screenshot:

![Screenshot 2023-03-10 at 21-46-19 pandas ecosystem — pandas 1 5 3 documentation](https://user-images.githubusercontent.com/239510/224425105-e9cef4ea-2aac-4e99-bb80-ea164947453f.png)

It's currently been added sphinx-lint side in https://github.com/sphinx-contrib/sphinx-lint/pull/56.
Thanks @JulienPalard 