add a tutorial example for SSH model ground state #134

	name: ci
	on: [push, pull_request]
	jobs:
	test:
	runs-on: ubuntu-latest
	name: test
	steps:
	- name: install openblas
	run: \|
	sudo apt-get update
	sudo apt-get -y install libblas-dev liblapack-dev
	- uses: actions/checkout@v2
	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: 3.8
	cache: "pip"
	- name: install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install --no-cache-dir -r requirements.txt
	- name: run tests
	run: \|
	pip install pytest-xdist pytest-cov
	export RENO_NUM_THREADS=1
	pytest -n 4 --durations=0 --cov=renormalizer renormalizer
	- name: run optional tests
	run: \|
	pip install primme==3.2.* pyscf==2.4.0
	pytest --durations=0 renormalizer/mps/tests/test_gs.py::test_multistate --cov=renormalizer --cov-append
	pytest --durations=0 renormalizer/mps/tests/test_gs.py::test_pyscf_solver --cov=renormalizer --cov-append
	- name: run examples
	run: \|
	cd example; bash run.sh
	cd ..
	- name: install pandoc
	run:
	sudo apt-get install pandoc
	- name: test build doc
	run: \|
	cd doc
	make html
	- name: Upload coverage to Codecov
	uses: codecov/codecov-action@v4
	env:
	CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}

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