Update programming.md #155

	# This script deploys the Jupyter Book to the GitHub Pages website

	name: deploy

	on:
	push:
	branches:
	- publish
	paths:
	- "book/**"
	- ".github/workflows/**"
	- "requirements.txt"
	workflow_dispatch:

	defaults:
	run:
	shell: bash

	jobs:
	build-book:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout repository
	uses: actions/checkout@v2
	with:
	ref: publish

	- name: Setup Python
	uses: actions/setup-python@v1
	with:
	python-version: "3.10"

	- name: Setup virtual environment
	uses: syphar/restore-virtualenv@v1
	with:
	requirement_files: requirements.txt

	- name: Setup pip cache
	uses: syphar/restore-pip-download-cache@v1
	if: steps.cache-virtualenv.outputs.cache-hit != 'true'

	- name: Install dependencies
	run: pip install -r requirements.txt
	if: steps.cache-virtualenv.outputs.cache-hit != 'true'

	- name: Build book
	run: jupyter book build book/

	- name: Deploy book
	uses: JamesIves/github-pages-deploy-action@v4
	with:
	folder: book/_build/html/

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