Updated Comments

[Eths33]

Fixing a copy and paste error in the comments.
I also added extra information about the units and measurement ranges, which people will likely want to know.

[caternuson]

Thanks. Looks the CI is failing on clang formatting. Can just run clang locally to let it fix:
https://learn.adafruit.com/the-well-automated-arduino-library/formatting-with-clang-format
or manually edit based on the CI run output. Looks like it's just trailing white space.