host:~$ sudo pip install pipenv  # maybe pip3 install or python -m pip install pipenv

host:~$ git clone xxx
host:~$ cd bih-cluster
host:bih-cluster$ pipenv install
host:bih-cluster$ pipenv shell
(bih-cluster) host:bih-cluster$ cd bih-cluster
(bih-cluster) host:bih-cluster$ mkdocs serve