Small README update #15

	# This workflow is triggered by a push to the `main` branch
	# which it checks out, minimises the appropriate html/css/js
	# in-place, and pushes the changes to the `gh-pages` branch

	name: Minify

	on:
	push:
	branches:
	- "main"

	permissions:
	contents: write

	jobs:
	checkout-minify-push:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout Code
	uses: actions/checkout@v3

	- name: Set up Minification Tools
	run: \|
	npm install -g terser csso-cli html-minifier-terser

	- name: Minify HTML, CSS, and JS
	run: \|
	# Minify HTML files
	find . -name "*.html" -exec html-minifier-terser --collapse-whitespace --remove-comments --minify-js true --minify-css true --output {}.min {} \;
	find . -name "*.html.min" -exec bash -c 'mv "$0" "${0%.min}"' {} \;

	# Minify CSS files
	find . -name "*.css" -exec csso --output {} {} \;

	# Minify JavaScript files
	find . -name "*.js" -exec terser --compress --mangle --output {} -- {} \;

	- name: Deploy to gh-pages
	run: \|
	git config user.name github-actions
	git config user.email github-actions@github.com
	git checkout --orphan gh-pages
	git reset
	git add -f .
	git commit -m "Deploy minified files to gh-pages"
	git push -f origin gh-pages

	- name: Return to main
	run: git checkout main

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