docs(ko): move table of contents to top and add missing ja/ docs section in README_KR.md#64

JiayuuWang wants to merge 1 commit intosanbuphy:mainsanbuphy/learn-coding-agent:mainfrom

JiayuuWang:contribot/fix-readme-kr-structureJiayuuWang/learn-coding-agent:contribot/fix-readme-kr-structureCopy head branch name to clipboard