Repository: huggingface/transformers
Pull request: 🌐 [i18n-KO] Translated `main_classes/optimizer_schedules.md` to Korean

# What does this PR do?

Translated the `main_classes/optimizer_schedules.md` file of the documentation to Korean.
Thank you in advance for your review.

Part of https://github.com/huggingface/transformers/issues/20179

## Before reviewing
- [x] Check for missing / redundant translations (번역 누락/중복 검사)
- [x] Grammar Check (맞춤법 검사)
- [x] Review or Add new terms to glossary (용어 확인 및 추가)
- [x] Check Inline TOC (e.g. `[[lowercased-header]]`)
- [x] Check live-preview for gotchas (live-preview로 정상작동 확인)

## Who can review? (Initial)
May you please review this PR?
@jungnerd, @chelsseeey, @skwh54, @amo33, @maximizemaxwell, @D15M4S
@harheem
@4N3MONE
@yijun-lee

## Before submitting
- [ ] This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
- [ ] Did you read the [contributor guideline](https://github.com/huggingface/transformers/blob/main/CONTRIBUTING.md#start-contributing-pull-requests),
      Pull Request section?
- [ ] Was this discussed/approved via a Github issue or the [forum](https://discuss.huggingface.co/)? Please add a link
      to it if that's the case.
- [ ] Did you make sure to update the documentation with your changes? Here are the
      [documentation guidelines](https://github.com/huggingface/transformers/tree/main/docs), and
      [here are tips on formatting docstrings](https://github.com/huggingface/transformers/tree/main/docs#writing-source-documentation).
- [ ] Did you write any new necessary tests?

## Who can review? (Final)
@stevhliu May you please review this PR?

Changed files:
filename: docs/source/ko/_toctree.yml
patch: @@ -412,8 +412,8 @@
       title: 텍스트 생성
     - local: main_classes/onnx
       title: ONNX
-    - local: in_translation
-      title: (번역중) Optimization
+    - local: main_classes/optimizer_schedules
+      title: 최적화
     - local: main_classes/output
       title: 모델 출력
     - local: main_classes/peft

filename: docs/source/ko/main_classes/optimizer_schedules.md
patch: @@ -0,0 +1,76 @@
+<!--Copyright 2020 The HuggingFace Team. All rights reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
+the License. You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
+an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
+specific language governing permissions and limitations under the License.
+
+⚠️ Note that this file is in Markdown but contain specific syntax for our doc-builder (similar to MDX) that may not be
+rendered properly in your Markdown viewer.
+
+-->
+
+# 최적화[[optimization]]
+
+`.optimization` 모듈은 다음을 제공합니다:
+
+- 미세 조정된 모델에 사용할 수 있는 가중치 감쇠가 적용된 옵티마이저
+- `_LRSchedule`을 상속받는 스케줄 객체 형태의 여러 스케줄
+- 여러 배치의 그래디언트를 누적하는 그래디언트 누적 클래스
+
+
+## AdaFactor (PyTorch)[[transformers.Adafactor]]
+
+[[autodoc]] Adafactor
+
+## AdamWeightDecay (TensorFlow)[[transformers.AdamWeightDecay]]
+
+[[autodoc]] AdamWeightDecay
+
+[[autodoc]] create_optimizer
+
+## 스케줄[[schedules]]
+
+### 학습률 스케줄 (PyTorch)[[transformers.SchedulerType]]
+
+[[autodoc]] SchedulerType
+
+[[autodoc]] get_scheduler
+
+[[autodoc]] get_constant_schedule
+
+[[autodoc]] get_constant_schedule_with_warmup
+
+<img alt="" src="https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/warmup_constant_schedule.png"/>
+
+[[autodoc]] get_cosine_schedule_with_warmup
+
+<img alt="" src="https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/warmup_cosine_schedule.png"/>
+
+[[autodoc]] get_cosine_with_hard_restarts_schedule_with_warmup
+
+<img alt="" src="https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/warmup_cosine_hard_restarts_schedule.png"/>
+
+[[autodoc]] get_linear_schedule_with_warmup
+
+<img alt="" src="https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/warmup_linear_schedule.png"/>
+
+[[autodoc]] get_polynomial_decay_schedule_with_warmup
+
+[[autodoc]] get_inverse_sqrt_schedule
+
+[[autodoc]] get_wsd_schedule
+
+### 웜업 (TensorFlow)[[transformers.WarmUp]]
+
+[[autodoc]] WarmUp
+
+## 그래디언트 전략[[gradient-strategies]]
+
+### GradientAccumulator (TensorFlow)[[transformers.GradientAccumulator]]
+
+[[autodoc]] GradientAccumulator