Use this script, or follow instructions on python-poetry.org? #157

https://python-poetry.org/docs/#installation says to install poetry either by typing:

pipx install poetry

or by following the instruction on this github repository to type:

curl -sSL https://install.python-poetry.org | python3 -

Perhaps "pipx install poetry" eventually finds instructions to run that curl command, but that isn't state either here or there. And presumably if "pipx install poetry" works, so should "pip install poetry", which is a lot easier than using curl.

Please update the README and/or python-poetry.org to say whether "pip install poetry" will do the same thing as this curl command; and if not, how we should decide which method to use.