Add lichess opening explorer #300

	# This workflow will install Python dependencies and run mypy

	name: Mypy

	on:
	push:
	branches: [ master ]
	pull_request:
	branches: [ master ]

	jobs:
	mypy:
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [windows-latest]
	python: [3.9, "3.11"]

	steps:
	- uses: actions/checkout@v3
	- name: Set up Python ${{ matrix.python }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r requirements.txt
	- name: Run mypy
	run: \|
	mypy --strict .

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