🌐 [i18n-KO] Translated whisper.md to Korean (#26002)

* docs: ko-whisper.md

* fix: chatgpt draft

* feat: manual edits

* Feat: manual edits

* fix: resolve suggestions

Co-authored-by: Jungnerd <46880056+jungnerd@users.noreply.github.com>

---------

Co-authored-by: Jungnerd <46880056+jungnerd@users.noreply.github.com>

docs/source/ko/_toctree.yml

@@ -567,8 +567,8 @@
         title: (번역중) Wav2Vec2Phoneme
       - local: in_translation
         title: (번역중) WavLM
-      - local: in_translation
-        title: (번역중) Whisper
+      - local: model_doc/whisper
+        title: Whisper
       - local: in_translation
         title: (번역중) XLS-R
       - local: in_translation