Added symmip workflow and installation instruction. #48

	name: pytest
	on: [push, pull_request]

	jobs:
	build:

	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest]
	python-version: [3.7, 3.8, 3.9, "3.10", 3.11]
	steps:
	- uses: actions/checkout@v3
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install wheel
	pip install pytest
	pip install -r requirements.txt
	pip install matplotlib
	pip install -e .
	- name: Test with coverage
	run:
	pytest

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