🌐 Add Korean translation for docs/ko/docs/deployment/index.md

[jujumilk3]

Translates docs/ko/docs/deployment/index.md and add deploy menu in Korean.
related: #2017

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (cf73051) 100.00% compared to head (e0dd717) 100.00%.
Report is 1086 commits behind head on master.

❗ Current head e0dd717 differs from pull request most recent head 46dfd26. Consider uploading reports for the commit 46dfd26 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##            master     #4561    +/-   ##
==========================================
  Coverage   100.00%   100.00%            
==========================================
  Files          540       532     -8     
  Lines        13969     13672   -297     
==========================================
- Hits         13969     13672   -297     

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[github-actions]

📝 Docs preview for commit a6ac0c4 at: https://6279b3cae81cb810ae4ecf00--fastapi.netlify.app

[github-actions]

📝 Docs preview for commit e0dd717 at: https://6289c206618f47151e11dd27--fastapi.netlify.app

[jujumilk3]

omg I deployed other translate commit at this PR. I just recovered this Branch.

[github-actions]

📝 Docs preview for commit a6ac0c4 at: https://6289c34e2e98e3166ea96a10--fastapi.netlify.app

[github-actions]

📝 Docs preview for commit 6b52790 at: https://63c6d3657bc13e6294e42ac5--fastapi.netlify.app

[tiangolo]

📝 Docs preview for commit 46dfd26 at: https://649a1d1921995415af357f36--fastapi.netlify.app

[alejsdev]

Thanks for your contribution! @jujumilk3 😄

And thanks for the review @peacekimjapan ☕