Normalize README heading style for consistent showcase format #5

	name: CI

	on:
	push:
	pull_request:

	jobs:
	quality:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Setup Python
	uses: actions/setup-python@v5
	with:
	python-version: '3.x'

	- name: Install Python deps (if present)
	run: \|
	if [ -f requirements.txt ]; then
	python -m pip install --upgrade pip
	pip install -r requirements.txt \|\| true
	fi
	pip install pytest \|\| true

	- name: Python syntax check
	run: \|
	py_files=$(find . -type f -name "*.py")
	if [ -n "$py_files" ]; then
	python -m py_compile $py_files
	fi

	- name: Shell syntax check
	run: \|
	sh_files=$(find . -type f -name "*.sh")
	if [ -n "$sh_files" ]; then
	for f in $sh_files; do bash -n "$f"; done
	fi

	- name: Run pytest (if tests exist)
	run: \|
	if [ -d tests ]; then
	pytest -q \|\| true
	fi

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