Update educationcategory-get.md

[JarbasHorst]

Applied standards to API topic.

[learn-build-service-prod]

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api-reference/beta/api/educationcategory-get.md	✅Succeeded

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[microsoft-github-policy-service]

Thanks for your pull request, JarbasHorst! I've added the do not merge label as a default status.

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After the content review is complete and the updates in this PR are ready for external customers to use, please replace the do not merge label with ready to merge.

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