Align observation initalization routines for different filters #161

	# Name of the action
	name: RenderPRSphinxDocumentation
	# Events on which this action should trigger
	on: [pull_request]
	# List of jobs to do
	jobs:
	# Job name
	makeDoc:
	# Wich OS / docker image to be used
	runs-on: ubuntu-latest
	# Steps of the job
	steps:
	# Checkout the branch of related PR
	- uses: actions/checkout@v3
	with:
	#ref: 'MultiVersionDoc'
	ref: ${{ github.event.pull_request.head.sha }}
	# Also check out the gh-pages branch (under _build/).
	# This is a small workaround to avoid completely overwriting the gh-pages
	# branch and thus killing existing documentation.
	# Changes will still be rendered, so the documentation will be up to date.
	- uses: actions/checkout@v3
	with:
	ref: gh-pages
	path: _build/
	# Use python env. and install dependencies
	- uses: actions/setup-python@v3
	- name: Install dependencies
	run: \|
	pip install --upgrade myst-parser
	pip install sphinx sphinx_rtd_theme
	pip install sphinx-copybutton
	# Build documentation with sphinx in _build/NameOfPRBranch
	- name: Sphinx build
	run: \|
	sphinx-build -a doc _build/${{ github.head_ref }}
	echo "DEBUG: pwd $(pwd)"
	echo "DEBUG: ls -l $(ls -l)"
	bash doc/MarkDiff.sh $(pwd)/_build/content $(pwd)/_build/${{ github.head_ref }}/content
	# Deploy new rendered documentation by pushing _build/ to branch gh-pages
	# The actual GiHub Page is refreshed by GitHub if the branch
	# gh-pages is updated automatically.
	- name: Deploy
	uses: peaceiris/actions-gh-pages@v3
	with:
	publish_branch: gh-pages
	github_token: ${{ secrets.GITHUB_TOKEN }}
	publish_dir: _build/
	force_orphan: true

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