README.md: fix build instructions #448

	name: python + Bazel pre-commit checks

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

	jobs:
	pre-commit:
	runs-on: ubuntu-latest
	env:
	MYPY_CACHE_DIR: "${{ github.workspace }}/.cache/mypy"
	RUFF_CACHE_DIR: "${{ github.workspace }}/.cache/ruff"
	PRE_COMMIT_HOME: "${{ github.workspace }}/.cache/pre-commit"

	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0
	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: 3.11
	cache: pip
	cache-dependency-path: pyproject.toml
	- name: Install dependencies
	run: python -m pip install ".[dev]"
	- name: Cache pre-commit tools
	uses: actions/cache@v4
	with:
	path: \|
	${{ env.MYPY_CACHE_DIR }}
	${{ env.RUFF_CACHE_DIR }}
	${{ env.PRE_COMMIT_HOME }}
	key: ${{ runner.os }}-${{ hashFiles('.pre-commit-config.yaml') }}-linter-cache
	- name: Run pre-commit checks
	run: pre-commit run --all-files --verbose --show-diff-on-failure

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