Add Korean translation for glossary.md

[JoosunH]

What does this PR do?

Fixes # (issue)

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• [ ] This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
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[JoosunH]

Hi @jungnerd , I've finished translating glossary.md into Korean. Following the i18n guidelines — would appreciate your review when you have time 😊 Thank you!

[Rocketknight1]

cc @stevhliu

[JoosunH]

감사합니다! 모든 제안사항 반영하였습니다! 확인 부탁드립니다!

[jungnerd]

Hi @stevhliu 👋 The Korean translations look great to me. I believe this PR is ready to be merged!

[stevhliu]

Thank you both for iterating and contributing! 🤗

[HuggingFaceDocBuilderDev]

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