move `givens_decomposition` and `_reduced_row_echelon` from `qchem` t… #4787

	name: "Read the Docs check"
	on:
	merge_group:
	types:
	- checks_requested
	pull_request:
	types:
	- opened
	- reopened
	- synchronize
	- ready_for_review
	push:
	branches:
	- master

	jobs:
	rtd_check:
	runs-on: ubuntu-24.04
	env:
	PYTHON_VERSION: "3.10"
	# Space separated list of packages to install for each package manager
	PIP_PACKAGES_TO_INSTALL: "sphinx"
	APT_PACKAGES_TO_INSTALL: "graphviz"
	steps:
	- name: Checkout Repo
	uses: actions/checkout@v4
	with:
	fetch-depth: 1

	- name: Install APT packages
	run: \|
	sudo apt-get update --assume-yes --quiet
	sudo apt install -y ${{ env.APT_PACKAGES_TO_INSTALL }}

	- name: Setup Python Environment
	id: setup_python
	uses: actions/setup-python@v5
	with:
	python-version: ${{ env.PYTHON_VERSION }}

	- name: Install dependencies
	run: \|
	pip install --upgrade --no-cache-dir pip setuptools
	pip install --upgrade --no-cache-dir ${{ env.PIP_PACKAGES_TO_INSTALL }}
	pip install --exists-action=w --no-cache-dir -r doc/requirements.txt
	pip install --upgrade --upgrade-strategy only-if-needed --no-cache-dir .


	- name: Build Sphinx HTML
	run: \|
	cd doc
	python -m sphinx -T -b html -d ./_build/doctrees -D language=en . ./html --keep-going

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