GitLab

* docs: ko: tasks_explained.mdx

* feat: nmt and manual edit `tasks_explained.mdx`

* revised: resolve suggestions task_explained.mdx

* fixed: added draft of reference docs
Co-Authored-By: Kihoon Son <75935546+KIHOON71@users.noreply.github.com>
Co-Authored-By: Nayeon Han <nayeon2.han@gmail.com>

* revised: resolve suggestions(voca, spell check) task_explained.mdx
Co-Authored-By: Sohyun Sim <96299403+sim-so@users.noreply.github.com>

* revised: remove duplicate sentence in task_explained.mdx

* fixed: remove draft of reference docs

- I think it will be confusing in the translation process.
- This issue is included in #23971.

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Co-authored-by: Kihoon Son <75935546+KIHOON71@users.noreply.github.com>
Co-authored-by: Nayeon Han <nayeon2.han@gmail.com>
Co-authored-by: Sohyun Sim <96299403+sim-so@users.noreply.github.com>