fix documentation errors

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🔨 Latest commit	de346f42c9525b451a94e7237b0d20140906d790

[aimichelle]

Hi @tanjunchen ! Thanks for this helpful fix! We require all of our commits to be signed. Would you mind following this guide to do so? https://docs.github.com/en/authentication/managing-commit-signature-verification/about-commit-signature-verification

[tanjunchen]

Hi @tanjunchen ! Thanks for this helpful fix! We require all of our commits to be signed. Would you mind following this guide to do so? https://docs.github.com/en/authentication/managing-commit-signature-verification/about-commit-signature-verification

done