🌐 [i18n-KO] Translated output.md to Korean (#33607)

* nmt draft

* fix toctree

* minor fix

* Apply suggestions from code review

* Apply suggestions from code review

* Apply suggestions from code review

Co-authored-by: boyunJang <gobook1234@naver.com>
Co-authored-by: wony617 <49024958+Jwaminju@users.noreply.github.com>

* Apply suggestions from code review

* Apply suggestions from code review

* Update docs/source/ko/main_classes/output.md

* Update docs/source/ko/_toctree.yml

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

---------

Co-authored-by: boyunJang <gobook1234@naver.com>
Co-authored-by: wony617 <49024958+Jwaminju@users.noreply.github.com>
Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>

docs/source/ko/_toctree.yml

@@ -293,8 +293,8 @@
     - local: in_translation
       title: (번역중) Optimization
     - local: in_translation
-      title: (번역중) Model outputs
-    - local: in_translation
+      title: 모델 출력
+    - local: main_classes/output
       title: (번역중) Pipelines
     - local: in_translation
       title: (번역중) Processors