update poetry python code example
Example: install poetry
# Install Poetry Python Package manager (as of 2020-05)
curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python
# Install Poetry Python Package manager (as of 2020-05)
curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python