polish(pu): polish deploy.yml for docs #1

	name: Deploy Sphinx Docs to GitHub Pages

	on:
	push:
	branches:
	- dev-doc

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout the repository
	uses: actions/checkout@v2

	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: '3.x'

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r requirements-doc.txt
	pip install sphinx sphinx-rtd-theme recommonmark

	- name: Build the Sphinx documentation
	run: \|
	cd docs/en
	make html

	- name: Deploy to GitHub Pages
	uses: peaceiris/actions-gh-pages@v3
	with:
	github_token: ${{ secrets.GITHUB_TOKEN }}
	publish_dir: ./docs/en/_build/html

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