Add GitHub Actions workflow #1

	name: Generate courses

	on:
	workflow_dispatch:
	push:
	branches:
	- main
	schedule:
	- cron: '0 8 * * *'

	jobs:
	run:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout main
	uses: actions/checkout@v4
	with:
	ref: main
	path: main
	- name: Checkout gh-pages
	uses: actions/checkout@v4
	with:
	ref: gh-pages
	path: gh-pages
	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: '3.x'
	- name: Install Python dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install requests
	- name: Generate courses
	run: \|
	python -u ./main/courses_to_json.py last-3 './gh-pages/courses_{year}_{semester}.json'
	- name: Deploy
	run: \|
	git config --local user.email "github-actions[bot]@users.noreply.github.com"
	git config --local user.name "github-actions[bot]"
	git add .
	git diff-index --quiet --cached HEAD \|\| git commit -m "Update courses"
	git push

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