Update detach-disk.yml

[azarboon]

Following should be clearly stated in the doc for clarity:

"You don't need to stop or restart a VM to detach its disk. You can remove the disk as long as nothing is actively using the disk when it is being detached."

[prmerger-automator]

@azarboon : 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 5c27d6e:

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File	Status	Preview URL	Details
articles/virtual-machines/windows/detach-disk.yml	✅Succeeded

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[prmerger-automator]

PRMerger Results

Issue	Description
Yaml File(s)	This PR includes changes to .yml file(s) owned by another author.

[Court72]

@roygara

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

[PMEds28]

@roygara

Can you review this old PR and determine whether it needs to be closed or merged?

@MicrosoftDocs/public-repo-pr-review-team

[Court72]

@azarboon

This article has been moved into a new repo, azure-compute-docs, so this PR can't be merged.

To resubmit your changes, find the article in the new repository and make the changes there (or copy/paste the raw markdown from your changed file) and open a new PR.

Thanks for contributing!