Fix typos

[DanielVandH]

PR created using https://github.com/tbroadley/github-spellcheck-cli.

[DanielVandH]

This could probably just as well be applied to docstrings, but I didn't include .jl files in the tool.

[codecov]

Codecov Report

Merging #298 (1d80fcd) into master (0865eb8) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #298   +/-   ##
=======================================
  Coverage   99.74%   99.74%           
=======================================
  Files          77       77           
  Lines        7084     7084           
=======================================
  Hits         7066     7066           
  Misses         18       18           

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[kellertuer]

Thanks for running this. If you like, sure also apply it to the doc strings. I will check carefully that we do not have a false-positive in there later, though :)

[DanielVandH]

Turns out that I don't know how to get it to properly work for .jl files, so I will leave it there (:.

Note that the initial check from this tool is all automatic, but I have to manually confirm one-by-one (there are many false positives initially!) so I think there shouldn't be any issues hopefully.

[kellertuer]

Thanks again, I checked the typos and there are no false-positives.
If you find the time to twiddle with the check to also include the docs, that would be neat. For this PR, we can just merge this and it is then part of the next release :)

Thanks again!