deprecation notice in README.md #30

	# Run CI tests
	name: CI

	# Controls when the action will run.
	on:
	# Triggers the workflow on push or pull request events but only for the master branch
	push:
	branches: [ master ]
	pull_request:
	branches: [ master ]

	# 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:
	build:
	runs-on: ubuntu-latest

	# Run the job for different versions of python
	strategy:
	matrix:
	python-version: [3.7, 3.8, 3.9]

	# Steps represent a sequence of tasks that will be executed as part of the job
	steps:

	# Checks-out repository code
	- name: Checkout code
	uses: actions/checkout@v2
	with:
	submodules: recursive

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}

	- name: Install dependencies
	run: pip install -r test/requirements_test.txt

	- name: Lint test
	working-directory: ./test
	run: pylint --extension-pkg-whitelist=netCDF4 --errors-only --ignore=test_coupling_fields.py,test_grids_match.py,test_valgrind.py *.py

	- name: Lint tools
	working-directory: ./tools
	run: pylint --extension-pkg-whitelist=netCDF4 -v --errors-only --rcfile=.pylintrc *.py

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