chore: replaces kelvin by jason as author

[baywet]

preparation for ms date fix

[learn-build-service-prod]

Learn Build status updates of commit a8b9d4c:

✅ Validation status: passed

File	Status	Preview URL	Details
cspell.json	✅Succeeded
OpenAPI/openapi.net/convert-openapi.md	✅Succeeded
OpenAPI/openapi.net/create-openapi.md	✅Succeeded
OpenAPI/openapi.net/modify-openapi.md	✅Succeeded
OpenAPI/OpenAPI.NET/overview.md	✅Succeeded

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