Update create-filter.md

[gkomatsu]

Adding back instructions how to filter Frontline Cloud PCs. Text was accidentally deleted when update for GPU was added.

[prmerger-automator]

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

[learn-build-service-prod]

Learn Build status updates of commit 604c1ff:

✅ Validation status: passed

File	Status	Preview URL	Details
windows-365/enterprise/create-filter.md	✅Succeeded

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

[learn-build-service-prod]

Learn Build status updates of commit 132ef70:

✅ Validation status: passed

File	Status	Preview URL	Details
windows-365/enterprise/create-filter.md	✅Succeeded

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