README: document main as default branch #1

	name: Continuous integration tests

	on:
	push:
	branches: [main]
	pull_request:
	branches: [main]

	jobs:
	ci:
	name: CI
	runs-on: ${{ matrix.os }}
	strategy:
	fail-fast: false
	matrix:
	os: [ubuntu-latest, macos-latest, windows-latest]
	python-version: ["3.11", "3.12"]

	steps:
	- uses: actions/checkout@v4

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}

	- name: Install package
	run: \|
	python -m pip install --upgrade pip
	pip install -e ".[dev,ui]"

	- name: Ruff
	run: ruff check src tests

	- name: Pytest
	run: pytest -q

	docs:
	name: Documentation (MkDocs)
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: "3.12"

	- name: Build docs
	run: \|
	python -m pip install --upgrade pip
	pip install -r docs/requirements.txt
	mkdocs build

	build-check:
	name: Build and check package
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: "3.12"

	- name: Build and twine check
	run: \|
	python -m pip install --upgrade pip build twine
	python -m build
	twine check dist/*

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