DOC Fix some typos in the docs

[MarcoGorelli]

Here's a few typos I found via codespell, first-timers are welcome to open a pull request to fix them

doc/source/ecosystem.rst:233: copyed ==> copied
doc/source/whatsnew/v0.24.1.rst:3: Whats ==> What's
doc/source/whatsnew/v0.16.2.rst:150: arithmetics ==> arithmetic
doc/source/whatsnew/v0.24.2.rst:3: Whats ==> What's
doc/source/whatsnew/v1.2.0.rst:183: Expecially ==> Especially

[dsaxton]

I think that "To wit" isn't a mistake here, I could see changing it because it sounds odd though

[MarcoGorelli]

OK have removed it from the issue

[asharma13524]

Ok, I believe my latest commit should have addressed this. Please let me know if something is wrong. Thanks.

[MarcoGorelli]

closed via #37253