VMDirectStorage module publishing

[JasonGerend]

Fills in missing descriptions and examples, using draft content created by Copilot then edited. Examples are cocreated and then manually tested.

PR Checklist [X] Descriptive Title: This PR's title is a synopsis of the changes it proposes. [X] Summary: This PR's summary describes the scope and intent of the change. [X] Contributor's Guide: I have read the [contributors guide][contrib]. [X] Style: This PR adheres to the [style guide][style].

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

Learn Build status updates of commit 15152fe:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
docset/winserver2025-ps/VMDirectStorage/Add-VMDirectVirtualDisk.md	:white_check_mark:Succeeded	View (WindowsServer2025-ps)
docset/winserver2025-ps/VMDirectStorage/Get-VMDirectVirtualDisk.md	:white_check_mark:Succeeded	View (WindowsServer2025-ps)
docset/winserver2025-ps/VMDirectStorage/Remove-VMDirectVirtualDisk.md	:white_check_mark:Succeeded	View (WindowsServer2025-ps)
docset/winserver2025-ps/VMDirectStorage/VMDirectStorage.md	:white_check_mark:Succeeded	View (WindowsServer2025-ps)

For more details, please refer to the build report.

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