Fixed typo error without break the API of the library

[vincenzopalazzo]

I'm a very bad person when it is the moment to write things, and my library contains a lot of typos.

If someone wants to contribute to this repository, you can start to read the code, and maybe fix some typos. However, this repository is used in a big project like JMars where the solidity of the API is more important than the typos.

The change of the API can be discussed in the discussion section.

If you want assigned this issue, please leave a comment below

Good luck :)

[berry120]

Hey, I've created a PR to fix a bunch of these 👍

[vincenzopalazzo]

HI @berry120,

Thanks, I will review for the end of the day, because now I'm traveling.

Thank you so much!