🌐 [i18n-KO] Translated add_new_pipeline.md to Korean (#25498)

* dos: ko: add_new_pipeline.mdx

* feat: chatgpt draft

* fix: manual edits

* docs: ko: add_new_pipeline

Update _toctree

* Update docs/source/ko/add_new_pipeline.md

Co-authored-by: Wonhyeong Seo <wonhseo@kakao.com>

* Update docs/source/ko/add_new_pipeline.md

Co-authored-by: Wonhyeong Seo <wonhseo@kakao.com>

* Update docs/source/ko/add_new_pipeline.md

Co-authored-by: Wonhyeong Seo <wonhseo@kakao.com>

* Update docs/source/ko/add_new_pipeline.md

Co-authored-by: SeongWooChoi <46990061+nuatmochoi@users.noreply.github.com>

* Update docs/source/ko/add_new_pipeline.md

Co-authored-by: SeongWooChoi <46990061+nuatmochoi@users.noreply.github.com>

* Update docs/source/ko/add_new_pipeline.md

Co-authored-by: SeongWooChoi <46990061+nuatmochoi@users.noreply.github.com>

* Update docs/source/ko/add_new_pipeline.md

Co-authored-by: Wonhyeong Seo <wonhseo@kakao.com>

* Update docs/source/ko/add_new_pipeline.md

Co-authored-by: Wonhyeong Seo <wonhseo@kakao.com>

* Update docs/source/ko/add_new_pipeline.md

Co-authored-by: SeongWooChoi <46990061+nuatmochoi@users.noreply.github.com>

* Update docs/source/ko/add_new_pipeline.md

Co-authored-by: SeongWooChoi <46990061+nuatmochoi@users.noreply.github.com>

* Update docs/source/ko/add_new_pipeline.md

Co-authored-by: SeongWooChoi <46990061+nuatmochoi@users.noreply.github.com>

---------

Co-authored-by: Wonhyeong Seo <wonhseo@kakao.com>
Co-authored-by: SeongWooChoi <46990061+nuatmochoi@users.noreply.github.com>

docs/source/ko/_toctree.yml

@@ -132,7 +132,7 @@
     - local: perf_infer_gpu_one
       title: 하나의 GPU를 활용한 추론
     - local: perf_infer_gpu_many
-      title: 여러 GPU에서 추론
+      title: 다중 GPU에서 추론
     - local: in_translation
       title: (번역중) Inference on Specialized Hardware
     - local: perf_hardware
@@ -153,8 +153,8 @@
       title: 🤗 Transformers에 새로운 모델을 추가하는 방법 
     - local: add_tensorflow_model
       title: 어떻게 🤗 Transformers 모델을 TensorFlow로 변환하나요?
-    - local: in_translation
-      title: (번역중) How to add a pipeline to 🤗 Transformers?
+    - local: add_new_pipeline
+      title: 어떻게 🤗 Transformers에 파이프라인을 추가하나요?
     - local: testing
       title: 테스트
     - local: pr_checks