Add announcement banner #488

	name: packaging

	on:
	# Make sure packaging process is not broken
	push:
	branches: [main, dev]
	pull_request:
	# Make a package for release
	release:
	types: [published]

	jobs:
	build:

	runs-on: ubuntu-latest
	strategy:
	max-parallel: 4
	matrix:
	python-version: ["3.10"]

	steps:
	- uses: actions/checkout@v1
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip setuptools setuptools_scm twine wheel
	- name: Create packages
	run: python setup.py sdist bdist_wheel
	- name: Run twine check
	run: twine check dist/*
	- uses: actions/upload-artifact@v2
	with:
	name: tox-gh-actions-dist
	path: dist

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