use {{ runner.os }} special environment variable to distinguish OSes

ci.yml: master => main

Merge pull request #18 from googlefonts/github-ci

Add github actions workflow to build and deploy wheels to PyPI

setup.py add missing metadata

Update README.md

Merge pull request #17 from googlefonts/cythonize2

remove pyproject.toml as not required to bootstrap cython

use cython to wrap C++ quadopt library

update gitignore

move script from tools/font-crunch to fontcrunch/cli.py

remove swig files

move to src directory following python best practices

reformat all *.py files with black auto-formatter

Merge pull request #14 from SPJPGRD/master