Add unit tests and GitHub Actions workflow #1

	name: Python Tests

	on:
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]

	jobs:
	test:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v2

	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: '3.10'

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	if [ -f requirements.txt ]; then pip install -r requirements.txt; fi

	- name: Install Tkinter
	run: \|
	sudo apt-get update
	sudo apt-get install -y python3-tk

	- name: Run tests
	run: \|
	python -m unittest test_typing_speed.py -v

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