Lint

add some additional information #74

	# This is a basic workflow to help you get started with Actions

	name: Lint

	# Controls when the workflow will run
	on:
	# Triggers the workflow on push or pull request events but only for the dev_nanoAOD branch
	# 'paths' variable will only select python files
	# FIXME: this needs to be updated if python3 is available on other branches
	push:
	branches: [ dev_nanoAOD ]
	paths:
	- "**.py"
	pull_request:
	branches: [ dev_nanoAOD ]
	paths:
	- "**.py"

	# Allows you to run this workflow manually from the Actions tab
	workflow_dispatch:

	# A workflow run is made up of one or more jobs that can run sequentially or in parallel
	jobs:
	# This workflow contains a single job called "lint"
	lint:
	# The type of runner that the job will run on
	runs-on: ubuntu-latest

	# Steps represent a sequence of tasks that will be executed as part of the job
	steps:
	# Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
	- uses: actions/checkout@v2
	# Use the 'black' package as linter to enforce coding style
	- uses: psf/black@stable
	with:
	options: "--check --verbose"

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