GHA: add `workflow_dispatch` #28

	name: CI
	on:
	push:
	branches: [ main ]
	tags: [ "**" ]
	pull_request:
	branches: [ "**" ]
	workflow_dispatch:
	jobs:
	test:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: ['3.11']
	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0
	- uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}
	cache: pip
	cache-dependency-path: 'requirements*.txt'
	- run: pip install -e . -r requirements-ci.txt
	- name: Set up README example tests
	run: \|
	seq 10 > 1.txt
	seq 10 -2 0 > 2.txt
	- name: Verify README examples, TOC
	run: \|
	mdcmd
	mktoc
	git diff --exit-code
	- name: Release
	if: startsWith(github.ref, 'refs/tags/') && matrix.python-version == '3.11'
	env:
	TWINE_USERNAME: __token__
	TWINE_PASSWORD: ${{ secrets.PYPI_TOKEN }}
	run: \|
	pip install setuptools twine wheel
	python setup.py sdist bdist_wheel
	twine upload dist/*

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