Merge pull request #293 from bacpop/gha-docs #1

	name: CI

	on:
	push:
	branches:
	- master

	jobs:
	build:

	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v1

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

	- uses: actions/upload-artifact@v1
	with:
	name: DocumentationHTML
	path: docs/_build/html/

	# Publish built docs to gh-pages branch.
	# ===============================
	- name: Commit documentation changes
	run: \|
	git clone https://github.com/bacpop/PopPUNK.git --branch gh-pages --single-branch gh-pages
	cp -r docs/_build/html/* gh-pages/
	cd gh-pages
	git config --local user.email "[email protected]"
	git config --local user.name "GitHub Action"
	git add .
	git commit -m "Update documentation" -a \|\| true
	# The above command will fail if no changes were present, so we ignore
	# the return code.
	- name: Push changes
	uses: ad-m/github-push-action@master
	with:
	branch: gh-pages
	directory: gh-pages
	github_token: ${{ secrets.GITHUB_TOKEN }}
	# ===============================

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