Update Add-KdsRootKey.md

[Natfan]

Modified the EffectiveTime parameter example, to include a day larger than 12. This should prevent confusion over the format to use (recommended as the American mm/dd/yyyy format, however any format should work as the parameter takes a DateTime, not a string)

[opbld32]

Docs Build status updates of commit e70e043:

:white_check_mark: Validation status: passed

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docset/winserver2022-ps/kds/Add-KdsRootKey.md	:white_check_mark:Succeeded	View (WindowsServer2022-ps)

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[scanum]

@tiburd PR has been copyedited and is ready for final review, could you please check and merge? Thanks!

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

Learn Build status updates of commit a328a12:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
docset/winserver2022-ps/kds/Add-KdsRootKey.md	:white_check_mark:Succeeded	View (WindowsServer2022-ps)

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