Fix typo

[changeworld]

Http status code -> HTTP status code

[prmerger-automator]

@changeworld : Thanks for your contribution! The author(s) and reviewer(s) have been notified to review your proposed change. @shaoli

[learn-build-service-prod]

Learn Build status updates of commit c1eab81:

✅ Validation status: passed

File	Status	Preview URL	Details
articles/ai-services/computer-vision/reference-face-error-codes.md	✅Succeeded

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[Court72]

@PatrickFarley

Can you review the proposed changes?

Important: When the changes are ready for publication, adding a #sign-off comment is the best way to signal that the PR is ready for the review team to merge.

#label:"aq-pr-triaged"
@MicrosoftDocs/public-repo-pr-review-team

[github-actions]

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Resolve Merge Conflict

[v-dirichards]

@PatrickFarley - Could you review this proposed update to your article and enter #sign-off in a comment if it's ready to merge? Thanks!