Add demos installation to setup.py #6

	name: CI

	on:
	push:
	pull_request:

	jobs:
	tests:
	name: Run tests
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	python-version: ["3.7", "3.8", "3.9"]
	steps:
	- name: Checkout code
	uses: actions/checkout@v2
	with:
	fetch-depth: 0
	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install cherab-solps and dependencies
	run: python -m pip install -e .
	- name: Run tests
	run: dev/test.sh

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