Wrong Limits link firewall-best-practices.md

[lanicolas]

The link to the Azure Firewall limits, seems to be the wrong one

[prmerger-automator]

@lanicolas : 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 e3d2ea5:

⚠️ Validation status: warnings

File	Status	Preview URL	Details
articles/firewall/firewall-best-practices.md	⚠️Warning		Details

articles/firewall/firewall-best-practices.md

• Line 20, Column 301: [Warning: file-not-found - See documentation] Invalid file link: '../includes/firewall-limits.md'.

For more details, please refer to the build report.

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[Court72]

@vhorne

Can you review the proposed changes? Note that the validation warning must be resolved before merge.

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