BizNet documentation
https://www.mkdocs.org/user-guide/installation/#installing-mkdocs
python -m mkdocs build -f config/en/mkdocs.yml
python -m mkdocs build -f config/kr/mkdocs.yml
python -m mkdocs serve -f config/en/mkdocs.yml
python -m mkdocs serve -f config/kr/mkdocs.yml