11/30/2023 PM Publish

[Taojunshen]

• Update example to use a scriptblock

• Update TOC

PR Summary

PR Checklist

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

[learn-build-service-prod]

Learn Build status updates of commit 944fe73:

✅ Validation status: passed

File	Status	Preview URL	Details
reference/7.3/Microsoft.PowerShell.Core/About/about_Preference_Variables.md	✅Succeeded	View (powershell-7.3)
reference/7.4/Microsoft.PowerShell.Core/About/about_Preference_Variables.md	✅Succeeded	View (powershell-7.4)
reference/docs-conceptual/learn/experimental-features.md	✅Succeeded	View (>=powershell-5.1)
reference/docs-conceptual/toc.yml	✅Succeeded	View (>=powershell-5.1)
reference/docs-conceptual/whats-new/overview.yml	✅Succeeded	View (>=powershell-5.1)

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