Add readthedocs configuration file #112

	name: IRAF Readthedocs generation

	on:
	push:
	schedule:
	- cron: '30 5 * * 1,3,5'

	jobs:
	create-rst:
	runs-on: ubuntu-latest

	env:
	iraf: ${{ github.workspace }}/iraf/
	TERM: ansi

	steps:
	- name: Checkout repository
	uses: actions/checkout@v3

	- name: Checkout latest IRAF master
	uses: actions/checkout@v3
	with:
	repository: iraf-community/iraf
	path: ${{ env.iraf }}

	- name: Install IRAF binaries and PyRAF
	run: \|
	sudo apt-get update -y
	sudo apt-get install -y --no-install-recommends iraf python3-pyraf python3-lxml python3-html5lib
	ln -sf /usr/lib/iraf/bin ${iraf}bin

	- name: Create ReStructuredText documents
	run: \|
	python3 tools/irafdocs.py

	- name: Push new docs
	run: \|
	git config --global user.name '[bot] IRAF doc autoupdate'
	git config --global user.email '[email protected]'
	git add --all doc
	git commit -m "Auto-updated IRAF documentation" \|\| exit 0
	git push

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