Fix links to locate Korean docs

[geunho]

한글 문서 내 몇몇 링크의 페이지가 이미 한글 번역이 완료 되었음에도 영문 페이지를 가리키는 것을 발견했습니다.
이에 작은 pr을 드립니다 😃

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[geunho]

I signed it

[gochist]

1.15 문서에도 백포트할 수 있도록 추가 PR(#16289)을 열었습니다.
/lgtm
/assign @claudiajkang

[seokho-son]

@geunho 중요한 버그를 잡아주셨네요! 컨트리뷰션 감사합니다. 👍
@gochist 리뷰 감사합니다 ~~
/approve

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: seokho-son

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