Update docs to describe difference between pyyaml and ryaml #30

	name: pre-commit

	on:
	pull_request:
	push:
	branches: [main]

	jobs:
	pre-commit:
	runs-on: ubuntu-latest
	steps:
	- name: checkout
	uses: actions/checkout@v2
	- name: setup python
	uses: actions/setup-python@v1
	with:
	python-version: 3.7
	- name: Install stable
	uses: actions-rs/toolchain@v1
	with:
	toolchain: stable
	default: true
	components: rustfmt, clippy
	- name: set PY
	run: echo "name=PY::$(python -c 'import hashlib, sys;print(hashlib.sha256(sys.version.encode()+sys.executable.encode()).hexdigest())')" >> $GITHUB_ENV
	- uses: actions/cache@v1
	with:
	path: ~/.cache/pre-commit
	key: pre-commit\|${{ env.PY }}\|${{ hashFiles('.pre-commit-config.yaml') }}
	- uses: pre-commit/action@v1.1.0

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