Update GHA and readme #2

	name: Build, Test, Push

	on:
	push:
	schedule:
	- cron: "0 0 * * 0"

	permissions:
	contents: read
	packages: write

	env:
	REGISTRY: ghcr.io
	IMAGE_NAME: ${{ github.repository }}

	jobs:
	build-test-push:
	runs-on: ubuntu-latest

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

	- name: Build / Set up Docker Buildx
	uses: docker/setup-buildx-action@v2

	- name: Build / Extract Docker metadata (tags, labels)
	id: meta
	uses: docker/metadata-action@v4.6.0
	with:
	images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

	- name: Build / Build Docker image
	uses: docker/build-push-action@v4.1.1
	with:
	context: .
	load: true
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}
	cache-from: type=gha
	cache-to: type=gha,mode=max

	### Test
	- name: Test / Render app to image
	run: \|
	docker run -v "$(pwd)/output:/project/output" -e TAP_PIXLET_MAGNIFICATION=8 ${{ steps.meta.outputs.tags }}
	sudo mv output/*/.webp output/image.webp

	- name: Test / Store image
	uses: actions/upload-artifact@v3
	with:
	name: image
	path: output/image.webp

	### Push
	- name: Push / Log in to the Container registry
	uses: docker/login-action@v2.2.0
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Push / Push Docker image
	uses: docker/build-push-action@v4.1.1
	with:
	context: .
	push: true
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}
	cache-from: type=gha
	cache-to: type=gha,mode=max

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