Fix typos

[szepeviktor]

Description of the Change

Found few misspellings.

How to test the Change

Read the diff.

Checklist:

• [x] I agree to follow this project's Code of Conduct.
• [ ] I have updated the documentation accordingly.
• [ ] I have added tests to cover my change.
• [ ] All new and existing tests pass.

[jeffpaul]

@10up/open-source-practice tagging the team as there are some code-related typos that I'm not quickly certain aren't referenced elsewhere / might have implications in changing

[szepeviktor]

Glad to contribute.