docs: update example in README #184

	# yamllint disable rule:line-length
	---
	name: CI

	on:
	pull_request:
	branches:
	- master
	push:
	branches:
	- master

	concurrency:
	group: ci-${{ github.ref }}
	cancel-in-progress: true

	jobs:
	pre-commit:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # v3.5.0
	- uses: actions/setup-python@d27e3f3d7c64b4bbf8e4abfb9b63b83e846e0435 # v4.5.0
	with:
	python-version: 3.x
	- uses: pre-commit/action@646c83fcd040023954eafda54b4db0192ce70507 # v3.0.0

	local-test:
	needs: pre-commit
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # v3.5.0
	- name: Test problem matcher
	id: expect-failure
	uses: ./
	with:
	config_file: .markdownlintrc
	files: .
	rules: examples/rules/custom.js
	continue-on-error: true
	- if: ${{ steps.expect-failure.outcome != 'failure' }}
	run: \|
	exit 1
	- name: Test ignore_files
	uses: ./
	with:
	config_file: .markdownlintrc
	files: .
	ignore_files: examples/ignore/*
	rules: examples/rules/custom.js
	- name: Test ignore_path
	uses: ./
	with:
	config_file: .markdownlintrc
	files: .
	ignore_path: examples/.markdownlintignore
	rules: examples/rules/custom.js

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