Add docs on subfeature and stacked PRs #400

	# rubocop action doesn't work yet:
	# https://github.com/gimenete/rubocop-action/issues/12
	name: Lint

	on:
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]

	jobs:
	rubocop:
	strategy:
	fail-fast: false
	runs-on: ubuntu-latest
	steps:
	- name: checkout
	uses: actions/checkout@v4
	- name: Setup ruby
	uses: ruby/setup-ruby@v1
	with:
	ruby-version: '3.2'
	- name: install deps
	run: bundle install
	- name: Run rubocop
	run: bundle exec rubocop --display-cop-names
	# rubocop:
	# runs-on: ubuntu-latest
	# steps:
	# - name: checkout
	# uses: actions/checkout@v2
	# - name: Rubocop checks
	# uses: gimenete/rubocop-action@1.0
	# env:
	# GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	markdownlint:
	runs-on: ubuntu-latest
	steps:
	- name: checkout
	uses: actions/checkout@v4
	- name: MarkdownLint mdl Action
	uses: actionshub/markdownlint@1.2.0

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