chore: fix typos

[afuetterer]

I did not create an issue first, because (again) the changes are trivial.

This PR fixes a few minor typos in docstrings and docs.

I used typos for this. You can also set up a pre-commit hook, so that all changes run through the spellchecker before commit.

I was unsure about this: typos wanted to change highligh_color() to highlight_color(), which is modifying the API. That is your decision.

BERTopic/bertopic/plotting/_approximate_distribution.py

Line 85 in 6f91b4e

def highligh_color(data, color='white'):

[MaartenGr]

Thanks for fixing these typos! I'll have to think about the package you refer since I rather manually check whether the changes are made correctly.

[MaartenGr]

What was the change here?

[afuetterer]

There was "Mutiply the IDF values of the seeded", missing l in multiply.

[afuetterer]

Of course, you don't need to use typos, I just wanted to let you know about the option.

I accepted your suggestion. Please feel free to squash the commits.