fix using library version file instead of setup one (`VERSION`) #20

	name: Build Sphinx docs

	on:
	push:
	pull_request:

	workflow_dispatch:

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: "3.x"
	- name: install package and docs optional dependencies
	run: pip install .[doc]
	- name: Build docs
	run: \|
	cd docs
	make html

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