우아한테크코스 6기 백엔드 기록
git clone https://github.com/donghoony/woowacourse-6th-archive/
git submodule init
git submodule update
git submodule foreach git pull
git submodule [-b {branch-name}] add {repository-url} {path}
git commit -m "feat: add level-{number} {mission-name}"
ref: https://blog.hoony.me/2024/03/16/archive-with-git-submodule/