[doc] Improve docs #2

	name: build-docs

	on:
	push:
	# all branches
	paths:
	- 'documentation/**'
	pull_request:
	# all branches
	paths:
	- 'documentation/**'

	# This enables the Run Workflow button on the Actions tab.
	workflow_dispatch:

	# Set DYLAN environment variable to GITHUB_WORKSPACE so packages are
	# installed in ../../_packages relative to documentation's Makefile
	env:
	DYLAN: ${{ github.workspace }}

	jobs:

	build-and-deploy:
	runs-on: ubuntu-latest
	steps:

	- uses: actions/checkout@v3

	- name: Install Open Dylan
	uses: dylan-lang/install-opendylan@v3
	with:
	version: 2023.1
	tag: v2023.1.0

	- name: Install sphinx-extensions dependencies
	run: \|
	dylan update

	- name: Build docs
	uses: ammaraskar/sphinx-action@master
	with:
	docs-folder: "documentation/"

	- name: Deploy documents to GH pages
	uses: JamesIves/github-pages-deploy-action@v4
	with:
	folder: documentation/build/html

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