[DOC] Fix typos again

[kianmeng]

PR Description

Please describe the changes proposed in the pull request:

• Fix typos again found via codespell -S *.ipynb -L ans,nam,bage,te,mapp,zar,caf,fro,som,tha,regon,variabl and typos --hidden --format brief

This PR resolves #(put issue number here, and remove parentheses).

PR Checklist

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1. PR in from a fork off your branch. Do not PR from <your_username>:dev, but rather from <your_username>:<feature-branch_name>.

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3. Add a line to CHANGELOG.md under the latest version header (i.e. the one that is "on deck") describing the contribution.
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Automatic checks

There will be automatic checks run on the PR. These include:

• Building a preview of the docs on Netlify
• Automatically linting the code
• Making sure the code is documented
• Making sure that all tests are passed
• Making sure that code coverage doesn't go down.

Relevant Reviewers

Please tag maintainers to review.

• @ericmjl

[ericmjl]

Thank you, @kianmeng!