🌐 [i18n-KO] Translated ko-LFM2.md to Korean

[ssum21]

What does this PR do?

Translated the lfm2.md file of the documentation to Korean.
Thank you in advance for your review.

Part of #20179

Before reviewing

• Check for missing / redundant translations (번역 누락/중복 검사)
• Grammar Check (맞춤법 검사)
• Review or Add new terms to glossary (용어 확인 및 추가)
• Check Inline TOC (e.g. [[lowercased-header]])
• Check live-preview for gotchas (live-preview로 정상작동 확인)

Who can review? (Initial)

May you please review this PR?
@4N3MONE, @Kim-Ju-won, @ahnjj, @FacerAin, @ssum21, @TaskerJang, @HyunZ118

Before submitting

• This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
• Did you read the contributor guideline,
  Pull Request section?
• Was this discussed/approved via a Github issue or the forum? Please add a link
  to it if that's the case.
• Did you make sure to update the documentation with your changes? Here are the
  documentation guidelines, and
  here are tips on formatting docstrings.
• Did you write any new necessary tests?

Who can review? (Final)

@stevhliu May you please review this PR?

[yijun-lee]

이외에는 좋은 것 같습니다!

[ahnjj]

앵커 추가 하였습니다 ! 👍🏻

[ssum21]

@yijun-lee 님, @ahnjj 님, 시간 내어 꼼꼼하게 리뷰해 주셔서 정말 감사합니다!

@ahnjj 님께서 제안해 주신 긴 문장 수정과 앵커 추가 덕분에 가독성이 훨씬 좋아졌습니당..👍
@yijun-lee 님께서 전체적으로 확인해주시고 좋은 의견 남겨주셔서 감사합니다!!

두 분께서 남겨주신 의견 모두 반영하여 커밋했습니다. 바쁘신 와중에 다시 한 번 감사드립니다! 🙏