Update how-to-manage-azure-ad-users.md

[petetian]

Improve the clarity of SQL command grammar based on customer feedback

[prmerger-automator[bot]]

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

[learn-build-service-prod[bot]]

Learn Build status updates of commit f39cae2:

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[Jak-MS]

@achudnovskij

• Can you review this PR?
• IMPORTANT: When this content is ready to merge, you must add #sign-off in a comment or the approval may get overlooked.

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

[markingmyname]

@petetian

Apologies for the delay.

If you can make the suggested changes, then we can sign off.

Thank you.

[learn-build-service-prod[bot]]

Learn Build status updates of commit e65d5b5:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
articles/postgresql/flexible-server/how-to-manage-azure-ad-users.md	:white_check_mark:Succeeded

For more details, please refer to the build report.

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[learn-build-service-prod[bot]]

Learn Build status updates of commit e236d0c:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
articles/postgresql/flexible-server/how-to-manage-azure-ad-users.md	:white_check_mark:Succeeded

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
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[American-Dipper]

emailed ac