Update case-study-creating-a-galaxy-in-mixed-reality.md

[GrantMeStrength]

This topic is still relevant, but the owner needs updated from a vendor to Sean Kerawala.

[prmerger-automator[bot]]

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

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

Learn Build status updates of commit d5714a4:

:bulb: Validation status: suggestions

File	Status	Preview URL	Details
mixed-reality-docs/mr-dev-docs/out-of-scope/case-study-creating-a-galaxy-in-mixed-reality.md	:bulb:Suggestion		Details

mixed-reality-docs/mr-dev-docs/out-of-scope/case-study-creating-a-galaxy-in-mixed-reality.md

• Line 5, Column 12: [Suggestion: ms-author-invalid - See documentation] Invalid value for 'ms.author', 'Sean-Kerawala' is not a valid Microsoft alias.

For more details, please refer to the build report.

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

Learn Build status updates of commit 8676f15:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
mixed-reality-docs/mr-dev-docs/out-of-scope/case-study-creating-a-galaxy-in-mixed-reality.md	:white_check_mark:Succeeded

For more details, please refer to the build report.

For any questions, please:

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• Post your question in the Learn support channel