Add a project coverage script #1

	name: Project coverage

	on:
	push:
	pull_request:

	jobs:
	coverage:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout regressions
	uses: actions/checkout@v4
	with:
	path: mkdocs-regressions
	- name: Checkout catalog
	uses: actions/checkout@v4
	with:
	repository: mkdocs/catalog
	path: mkdocs-catalog
	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: '3.11'
	- name: Print project coverage
	run: python mkdocs-regressions/coverage.py

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