Update clang-tidy.md

[Omotola]

Added information for a new project property that allows selection of a custom clang-tidy exe

[prmerger-automator]

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

[learn-build-service-prod]

Learn Build status updates of commit 1ad0ecb:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/code-quality/clang-tidy.md	✅Succeeded

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[Court72]

@Omotola,

When this PR is ready for review, remove Draft mode by selecting Ready for review.

[Court72]

@TylerMSFT

Can you review the proposed changes?

When the changes are ready for publication, add a #sign-off comment to signal that the PR is ready for the review team to merge.

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

[TylerMSFT]

A couple minor suggestions.

[learn-build-service-prod]

Learn Build status updates of commit 930414f:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/code-quality/clang-tidy.md	✅Succeeded

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel

[learn-build-service-prod]

Learn Build status updates of commit 2523ec1:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/code-quality/clang-tidy.md	✅Succeeded

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel

[TylerMSFT]

Thank you for updating this topic

[learn-build-service-prod]

Learn Build status updates of commit 6cbac18:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/code-quality/clang-tidy.md	✅Succeeded

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel