updated doc regarding collections #235

	# vim: tabstop=2 expandtab shiftwidth=2 softtabstop=2 smartindent nu
	---
	name: pylint
	on:
	pull_request:
	push:
	schedule:
	- cron: "20 6 * * 1"
	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python 3.9
	uses: actions/setup-python@v2
	with:
	python-version: 3.9
	- name: install pylint
	run: \|
	python -m pip install --upgrade pip
	pip install pylint==2.7.2 pyyaml
	- name: run pylint
	run: \|
	pylint *.py

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