Update raise-domain-forest-functional-levels.md

[HerbertMauerer]

This article needs to spell out some DFL or FFL changes are in fact reversible.

[prmerger-automator]

@HerbertMauerer : Thanks for your contribution! The author(s) have been notified to review your proposed change. @gswashington

[learn-build-service-prod]

Learn Build status updates of commit b4b044a:

⚠️ Validation status: warnings

File	Status	Preview URL	Details
WindowsServerDocs/identity/ad-ds/plan/raise-domain-forest-functional-levels.md	⚠️Warning		Details
WindowsServerDocs/networking/sdn/index.yml	⚠️Warning		Details

WindowsServerDocs/identity/ad-ds/plan/raise-domain-forest-functional-levels.md

• Line 25, Column 3: [Warning: hard-coded-locale - See documentation] Link 'https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-R2-and-2008/ee617220(v=technet.10)' contains locale code 'en-us'. For localizability, remove 'en-us' from links to most Microsoft sites.
• Line 26, Column 3: [Warning: hard-coded-locale - See documentation] Link 'https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-r2-and-2008/ee617230(v=technet.10)' contains locale code 'en-us'. For localizability, remove 'en-us' from links to most Microsoft sites.
• Line 25, Column 3: [Suggestion: docs-link-absolute - See documentation] Absolute link 'https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-R2-and-2008/ee617220(v=technet.10)' will be broken in isolated environments. Replace with a relative link.
• Line 26, Column 3: [Suggestion: docs-link-absolute - See documentation] Absolute link 'https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-r2-and-2008/ee617230(v=technet.10)' will be broken in isolated environments. Replace with a relative link.

WindowsServerDocs/networking/sdn/index.yml

• Line 9, Column 15: [Warning: ms-service-subservice-invalid - See documentation] Invalid value for 'ms.service': 'help'.

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[ttorble]

#assign: @robinharwood, @Xelu86

@robinharwood @Xelu86

Can you review the proposed changes?

#label:"aq-pr-triaged"

@MicrosoftDocs/public-repo-pr-review-team