Fix typos and reformatting for line length.

[mlvandijk]

What's changed?

Fixed some typos / grammatical errors in the README and reformatted for line length

What's your motivation?

Small improvements to the README

Anything in particular you'd like reviewers to focus on?

Anyone you would like to review specifically?

@timtebeek

Have you considered any alternatives or workarounds?

Any additional context

Checklist

• I've added unit tests to cover both positive and negative cases
• I've added the license header to any new files through ./gradlew licenseFormat
• I've used the IntelliJ auto-formatter on affected files
• I've updated the documentation (if applicable)

[timtebeek]

Thanks a lot! Looks good to me; asked @mike-solomon to optionally have another look before a merge.

[mike-solomon]

Thanks for keeping documentation in mind and making these changes! I went through and made some additional grammar suggestions to the text (which was definitely not your fault to be clear!)

[mlvandijk]

Perfect!