docs: fix typo

[stevenfollis]

What kind of change does this PR introduce?

Tiny docs typo fix

Did you add tests for your changes?
N/A

If relevant, did you update the documentation?

Summary

Tiny docs typo fix

Does this PR introduce a breaking change?
Negative

Other information
Issue #12416

Thanks!

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[conventional-commit-lint-gcf]

🤖 I detect that the PR title and the commit message differ and there's only one commit. To use the PR title for the commit history, you can use Github's automerge feature with squashing, or use automerge label. Good luck human!

-- conventional-commit-lint bot
https://conventionalcommits.org/