update readme #169

	name: docs

	on:
	push:
	branches:
	- main

	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: [3.9]

	steps:
	- name: Checkout github repo
	uses: actions/checkout@v2

	- name: Install poetry
	run: pipx install poetry

	- name: Install pandoc
	run: sudo apt-get install pandoc

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v3
	with:
	python-version: ${{ matrix.python-version }}
	cache: "poetry"

	- name: Install FFTW
	run: \|
	sudo apt-get install libfftw3-dev

	- name: Install python packages
	run: \|
	poetry install

	- name: build docs
	shell: bash -l {0}
	run: \|
	cd docs
	poetry run make html
	if [ $? = 2 ]; then exit 1;fi
	cd build/html
	touch .nojekyll

	- name: Commit documentation changes
	run: \|
	git clone https://github.com/LSSTDESC/BlendingToolKit.git --branch gh-pages --single-branch gh-pages
	cp -r docs/build/html/* gh-pages/docs/
	cd gh-pages/docs
	touch .nojekyll
	git config --local user.email "action@github.com"
	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 that.
	- 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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