🌐 [i18n-KO] Translated fsdp.md to Korean (#32261)

* docs: ko: fsdp.md

* feat: nmt draft

* fix: manual edits

* Apply suggestions from code review

Co-authored-by: 김준재 <55151385+junejae@users.noreply.github.com>
Co-authored-by: Minki Kim <100768622+1kmmk1@users.noreply.github.com>

* fix: resolve suggestions

* Update docs/source/ko/fsdp.md

Co-authored-by: 김준재 <55151385+junejae@users.noreply.github.com>

* Update docs/source/ko/fsdp.md

Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>

---------

Co-authored-by: 김준재 <55151385+junejae@users.noreply.github.com>
Co-authored-by: Minki Kim <100768622+1kmmk1@users.noreply.github.com>
Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>

docs/source/ko/_toctree.yml

@@ -170,8 +170,8 @@
       title: (번역중) Methods and tools for efficient training on a single GPU
     - local: perf_train_gpu_many
       title: 다중 GPU에서 훈련 진행하기
-    - local: in_translation
-      title: (번역중) Fully Sharded Data Parallel
+    - local: fsdp
+      title: 완전 분할 데이터 병렬 처리
     - local: in_translation
       title: (번역중) DeepSpeed
     - local: perf_train_cpu