common/n*: add and update Korean translation (#14636)

* common/n*: add and update Korean translation

* Update pages.ko/common/nudoku.md

Co-authored-by: Sebastiaan Speck <12570668+sebastiaanspeck@users.noreply.github.com>

* Update pages.ko/common/ncmpcpp.md

Co-authored-by: Chooooo <contact@choo.ooo>

* Update pages.ko/common/neofetch.md

Co-authored-by: Chooooo <contact@choo.ooo>

* Update pages.ko/common/nextflow.md

Co-authored-by: Chooooo <contact@choo.ooo>

* Update pages.ko/common/nslookup.md

Co-authored-by: Chooooo <contact@choo.ooo>

* Update pages.ko/common/netserver.md

Co-authored-by: Chooooo <contact@choo.ooo>

* Update pages.ko/common/nuclei.md

Co-authored-by: Chooooo <contact@choo.ooo>

* Update pages.ko/common/nuclei.md

Co-authored-by: Chooooo <contact@choo.ooo>

* Update pages.ko/common/nslookup.md

Co-authored-by: Chooooo <contact@choo.ooo>

* Update pages.ko/common/nextflow.md

Co-authored-by: Chooooo <contact@choo.ooo>

* Update pages.ko/common/nvm.fish.md

Co-authored-by: Chooooo <contact@choo.ooo>

---------

Co-authored-by: Sebastiaan Speck <12570668+sebastiaanspeck@users.noreply.github.com>
Co-authored-by: Chooooo <contact@choo.ooo>

pages.ko/common/netperf.md

@@ -0,0 +1,21 @@
+# netperf
+
+> 네트워크 처리량을 측정하는 벤치마킹 애플리케이션 `netperf`의 클라이언트 측 명령어. `iperf`와 유사합니다.
+> 같이 보기: 서버 측 명령어 `netserver`.
+> 더 많은 정보: <https://hewlettpackard.github.io/netperf/doc/netperf.html#Global-Command_002dline-Options>.
+
+- 기본 포트(12865)를 통해 특정 IP 주소의 서버에 연결:
+
+`netperf {{주소}}`
+
+- [p]ort 지정:
+
+`netperf {{주소}} -p {{포트}}`
+
+- 샘플링 [l]ength를 초 단위로 지정 (기본값은 10초):
+
+`netperf {{주소}} -l {{초}}`
+
+- IPv[4] 또는 IPv[6] 강제 사용:
+
+`netperf {{주소}} -{{4|6}}`