🌐 Add Korean translation for `docs/ko/docs/features.md`

[joonas-yoon]

Translate the document docs/ko/docs/features.md

related: #2017

This needs to help for some sentences. especially,

• At line 140, "All the dependencies can require data from requests and augment the path operation constraints and automatic documentation."

Any suggestion?

[codecov[bot]]

Codecov Report

Base: 100.00% // Head: 100.00% // No change to project coverage :thumbsup:

Coverage data is based on head (ab8988f) compared to base (cf73051). Patch has no changes to coverable lines.

:exclamation: Current head ab8988f differs from pull request most recent head cb8c3e8. Consider uploading reports for the commit cb8c3e8 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##            master     #5237    +/-   ##
==========================================
  Coverage   100.00%   100.00%            
==========================================
  Files          540       533     -7     
  Lines        13969     13725   -244     
==========================================
- Hits         13969     13725   -244     

Impacted Files	Coverage Δ
tests/main.py	100.00% <0.00%> (ø)
tests/utils.py	100.00% <0.00%> (ø)
fastapi/utils.py	100.00% <0.00%> (ø)
fastapi/routing.py	100.00% <0.00%> (ø)
fastapi/encoders.py	100.00% <0.00%> (ø)
tests/test_query.py	100.00% <0.00%> (ø)
fastapi/websockets.py	100.00% <0.00%> (ø)
fastapi/concurrency.py	100.00% <0.00%> (ø)
fastapi/applications.py	100.00% <0.00%> (ø)
fastapi/openapi/docs.py	100.00% <0.00%> (ø)
... and 23 more

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

:umbrella: View full report at Codecov.
:loudspeaker: Do you have feedback about the report comment? Let us know in this issue.

[github-actions[bot]]

📝 Docs preview for commit 206bceebad420acd3eade9d8285decec6e07647a at: https://62ed03256dd43648649737a9--fastapi.netlify.app

[github-actions[bot]]

📝 Docs preview for commit 85c19e058bf82935dde76f36099edbeaa3f2f94f at: https://62fed5173202f010b12a5cf0--fastapi.netlify.app

[tiangolo]

📝 Docs preview for commit 3c149c614e073a1bc1e2fea2bb9035e6e0b76cbd at: https://649a11c897baca0e999a9ee5--fastapi.netlify.app

[tiangolo]

As this PR had requested changes to be applied but has been inactive for a while, it's now going to be closed. But if there's anyone interested, feel free to create a new PR.