Update New-AzKeyVault.md

[jufuku0108]

Seems mis-explanation for this parameter.

Description

Mandatory Checklist

• Please choose the target release of Azure PowerShell. (⚠️Target release is a different concept from API readiness. Please click below links for details.)

  • General release
  • Public preview
  • Private preview
  • Engineering build
  • No need for a release

• Check this box to confirm: I have read the Submitting Changes section of CONTRIBUTING.md and reviewed the following information:

• SHOULD update ChangeLog.md file(s) appropriately
  • For SDK-based development mode, update src/{{SERVICE}}/{{SERVICE}}/ChangeLog.md.
    • A snippet outlining the change(s) made in the PR should be written under the ## Upcoming Release header in the past tense.
  • For autorest-based development mode, include the changelog in the PR description.
  • Should not change ChangeLog.md if no new release is required, such as fixing test case only.
• SHOULD regenerate markdown help files if there is cmdlet API change. Instruction
• SHOULD have proper test coverage for changes in pull request.
• SHOULD NOT adjust version of module manually in pull request

[azure-client-tools-bot-prd]

️✔️Az.KeyVault

️✔️Build

️✔️PowerShell Core - Windows

️✔️Windows PowerShell - Windows

️✔️Help Example Check

️✔️PowerShell Core - Windows

️✔️Windows PowerShell - Windows

️✔️Help File Existence Check

️✔️PowerShell Core - Windows

️✔️Windows PowerShell - Windows

[microsoft-github-policy-service]

Thank you for your contribution jufuku0108! We will review the pull request and get back to you soon.

[msJinLei]

/azp run azure-powershell - security-tools

[azure-pipelines]

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