Update pages.yml #1958

	name: docs

	on:
	push:
	branches: [main]
	pull_request:

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v2

	- uses: actions/setup-python@v2
	with:
	python-version: 3.9

	- name: Install dependencies
	run: \|
	python -m pip install pip==23.1.2 setuptools==67.7.2 wheel==0.40.0
	pip install virtualenv==20.23.0 tox==4.5.1.1

	- name: install haddock3
	run: pip install -v .

	- name: docs
	run: tox -e docs

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