fix: add comment #317

	name: CI
	on: [push]
	jobs:
	build:
	runs-on: ubuntu-latest
	defaults:
	run:
	shell: bash -l {0}
	steps:
	- name: Install dependencies
	run: \|
	sudo apt-get update
	sudo apt-get install libgdal-dev gdal-bin libfftw3-dev
	- uses: actions/checkout@v2
	with:
	submodules: true
	- uses: actions/setup-python@v4
	with:
	python-version: '3.10'
	- name: Build sdist
	run: \|
	python -m pip install --upgrade pip
	python setup.py sdist
	- name: Test sdist install
	run: pip install dist/*.tar.gz

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