Update New-ADUser.md - Corrected misplaced bracket in -Name parameter

[drwhittle]

Corrected misplaced bracket in -Name parameter

PR Summary

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.
• [x] Style: This PR adheres to the style guide.

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

Learn Build status updates of commit 6d246ff:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
docset/winserver2022-ps/activedirectory/New-ADUser.md	:white_check_mark:Succeeded	View (WindowsServer2022-ps)

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