* docs: ko: main_classes/peft.md
* feat: nmt draft
* docs: add missing TOC to documentation for `PeftAdapterMixin` section
Added a table of contents (TOC) to the documentation, specifically for the `transformers.integrations.PeftAdapterMixin` section, following the structure and content outlined in [this link](https://huggingface.co/docs/transformers/main/en/main_classes/peft#transformers.integrations.PeftAdapterMixin).
* fix: Improve naturalness of purpose expression in Korean
Changed '관리하기 위한' to '관리할 수 있도록' for more natural Korean expression when describing the purpose of providing functions.
* fix: Simplify plural form and make expression more concise
Changed '~할 수 없기 때문에' to '~할 수 없어' for more concise expression while maintaining clarity.
* fix: Replace technical term '주입' with more natural '적용'
Changed '주입할 수 없어' to '적용할 수 없어' for better readability.
Considered alternatives:
'삽입': Too literal translation of 'inject'
'입력': Could be misunderstood as data input
'통합': Implies merging two systems
'추가': Simple but less precise
'적용' was chosen as it's the most natural and widely used term in Korean technical documentation for this context.
* fix: update toctree path for PEFT to lowercase
Changed the toctree path from 'PEFT' (uppercase) to 'peft' (lowercase) to match the correct directory naming convention and prevent broken links.
* docs: update as per reviewer feedback after rebase
98386dcee9