Add Symfony attribute describers #312

	name: CI

	on:
	push: ~
	pull_request: ~

	jobs:
	doctor-rst:
	name: Lint (DOCtor-RST)

	runs-on: ubuntu-latest

	steps:
	- name: "Checkout"
	uses: actions/checkout@v2

	- name: "Create cache dir"
	run: mkdir .cache

	- name: "Extract base branch name"
	run: echo "##[set-output name=branch;]$(echo ${GITHUB_BASE_REF:=${GITHUB_REF##*/}})"
	id: extract_base_branch

	- name: "Cache DOCtor-RST"
	uses: actions/cache@v2
	with:
	path: .cache
	key: ${{ runner.os }}-doctor-rst-${{ steps.extract_base_branch.outputs.branch }}

	- name: "Run DOCtor-RST"
	uses: docker://oskarstark/doctor-rst
	with:
	args: --short --error-format=github --cache-file=/github/workspace/.cache/doctor-rst.cache

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