$ git clone https://github.com/SeiwonPark/christmas-tree-cli.git
$ python main.py
$ python main.py --help
usage: main.py [-h] [-b BRANCH] [-w WIDTH]
optional arguments:
-h, --help show this help message and exit
-b BRANCH, --branch BRANCH
Tree height. It will define the number of branches.
Tree height ≥ 1
-w WIDTH, --width WIDTH
Tree width. It will define the number of leaves in its
branch. Tree width ≥ 5