Added oras support for apptainer/singularity, restructured the backen… #4

	# Deploy Velocity documentation
	name: Deploy documentation to Pages

	on:
	# trigger on push to develop also allow manual runs
	push:
	branches: ["develop"]
	workflow_dispatch:

	# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
	permissions:
	contents: read
	pages: write
	id-token: write

	# Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
	# However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
	concurrency:
	group: "pages"
	cancel-in-progress: false

	jobs:
	deploy:
	environment:
	name: github-pages
	url: ${{ steps.deployment.outputs.page_url }}
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	ref: "develop"
	- name: Setup Pages
	uses: actions/configure-pages@v5
	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: '3.10'
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install sphinx sphinx-rtd-theme
	- name: Build Docs
	run: \|
	cd docs && make html
	- name: Upload documentation HTML files
	uses: actions/upload-pages-artifact@v3
	with:
	path: './docs/build/html'
	- name: Deploy to GitHub Pages
	id: deployment
	uses: actions/deploy-pages@v4

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