Added a requirements file, and updated README. #1174

	name: Ansible Lint

	on:
	push:
	branches:
	- main
	pull_request:

	jobs:
	lint:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v3

	- name: Setup Python
	uses: actions/setup-python@v4
	with:
	python-version: 3.9

	- uses: actions/cache@v3
	with:
	path: ${{ env.pythonLocation }}
	key: ${{ env.pythonLocation }}-${{ hashFiles('**/requirements.txt') }}

	- name: Install required dependencies
	run: \|
	pip install ansible-lint ansible
	pip install -r requirements.txt

	- name: Run ansible Lint
	run: \|
	ansible-lint --exclude .github/ -v
	env:
	ANSIBLE_INVENTORY_UNPARSED_FAILED: false

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