Add env variable overrides to `config.rb` #111

	name: Deploy

	on:
	push:
	branches:
	- main
	workflow_dispatch:

	concurrency: production

	jobs:
	build:
	name: Build site
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v3
	- name: Setup Node
	uses: actions/setup-node@v3
	with:
	node-version: '20'
	- name: Setup Ruby
	uses: ruby/setup-ruby@v1
	with:
	bundler-cache: true
	- name: Setup Pages
	uses: actions/configure-pages@v2
	- name: Build
	run: bundle exec middleman build
	- name: Upload
	uses: actions/upload-pages-artifact@v1
	with:
	path: build/

	deploy:
	name: Deploy site
	needs: build
	environment:
	name: github-pages
	url: ${{ steps.deployment.outputs.page_url }}
	runs-on: ubuntu-latest
	permissions:
	pages: write
	id-token: write
	steps:
	- name: Deploy to GitHub Pages
	id: deployment
	uses: actions/deploy-pages@v2

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