Test

add section about Tree->HCL2 reconstruction to the README.md #123

	---
	name: Test
	on:
	pull_request:
	types:
	- opened
	- reopened
	- synchronize

	jobs:
	test:
	name: Check code against linter/unit tests
	runs-on: ubuntu-22.04
	strategy:
	matrix:
	python-version: ['3.7', '3.8', '3.9', '3.10', '3.11', '3.12']
	steps:
	- uses: actions/checkout@master
	- 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 "tox>=4.0.9,<5" build
	- name: Build to generate the version file
	run: python3 -m build
	- name: Test with Tox
	run: tox

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