Update howto-network-fabric-quality-of-service.md

[rkaraddi]

Fixing errors in the QoS doc

[prmerger-automator]

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

[prmerger-automator]

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

[learn-build-service-prod]

Learn Build status updates of commit 084e9fa:

✅ Validation status: passed

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[bartpinto]

A few recommendations below.

[Copilot]

Pull request overview

This PR updates the Azure Operator Nexus QoS documentation to correct the Azure CLI commands used to lock a fabric configuration and commit configuration changes.

Changes:

• Replaced the configuration lock example with the newer az networkfabric fabric lock-fabric command and parameters.
• Replaced the commit example with az networkfabric fabric commit-configuration.

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[Court72]

@dougbristow

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

[learn-build-service-prod]

Learn Build status updates of commit f1d8c94:

✅ Validation status: passed

File	Status	Preview URL	Details
operator-nexus/howto-network-fabric-quality-of-service.md	✅Succeeded

For more details, please refer to the build report.

[prmerger-automator]

PRMerger Results

Issue	Description
File Change Percent	This PR contains file(s) with more than 30% file change.

[learn-build-service-prod]

Learn Build status updates of commit 8483519:

✅ Validation status: passed

File	Status	Preview URL	Details
operator-nexus/howto-network-fabric-quality-of-service.md	✅Succeeded

For more details, please refer to the build report.

[prmerger-automator]

PRMerger Results

Issue	Description
File Change Percent	This PR contains file(s) with more than 30% file change.