QA/Markdown CS: various tweaks #2

	name: Markdown

	on:
	# Run on all pushes which touch markdown files and on all pull requests.
	push:
	paths:
	- '**.md'
	pull_request:
	# Also run this workflow every Monday at 6:00 (to make sure the broken link check runs regularly).
	schedule:
	- cron: '0 6 * * 1'
	# Allow manually triggering the workflow.
	workflow_dispatch:

	# Cancels all previous workflow runs for the same branch that have not yet completed.
	concurrency:
	# The concurrency group contains the workflow name and the branch name.
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	jobs:
	markdownlint:
	name: 'Lint Markdown'
	runs-on: ubuntu-latest

	# Don't run the cronjob in this workflow on forks.
	if: github.event_name != 'schedule' \|\| (github.event_name == 'schedule' && github.repository_owner == 'PHPCSStandards')

	steps:
	- name: Checkout code
	uses: actions/checkout@v4

	# @link https://github.com/marketplace/actions/problem-matcher-for-markdownlint-cli
	- name: Enable showing issue in PRs
	uses: xt0rted/markdownlint-problem-matcher@v3

	# @link https://github.com/marketplace/actions/markdownlint-cli2-action
	- name: Check markdown with CLI2
	uses: DavidAnson/markdownlint-cli2-action@v16

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