Add file watcher for shopware/shopware #3083

	name: markdown-style-check
	on:
	push:
	branches:
	- main
	pull_request:
	workflow_dispatch:
	jobs:
	lint-docs:
	name: Documentation Markdown Linter
	runs-on: ubuntu-latest
	steps:
	- name: Check out code
	uses: actions/checkout@v2

	- name: Lint changelog file
	uses: docker://avtodev/markdown-lint:v1.5
	with:
	config: 'markdown-style-config.yml'
	args: './'
	ignore: './resources/guidelines/code/core/* ./resources/references/* ./adr/* ./'

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