Fix #652 - Change Spelling of `author` in `README.md`

[anirudhRowjee]

Pull Request

What does this PR do?

Fixes #652

• Changes spellings of au{hor to author
• Minor formatting changes in Markdown

PR checklist

Please check if your PR fulfills the following requirements:

• [x] Does this PR fix an existing issue?
• [x] Have you read the contributing guidelines?
• [x] Have you made sure that the title is accurate and descriptive of the changes?

[anirudhRowjee]

Would also be happy to fix the relevant doctest, if need be. Thanks!

[curquiza]

bors merge

[curquiza]

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[bors[bot]]

Build succeeded:

• Run Rustfmt
• Tests on macos-latest
• Tests on ubuntu-20.04
• Tests on windows-latest