Updates based on discussion, some XX to fill before merge #3062

	name: Check sphinx warnings
	on:
	push:
	branches:
	- master
	pull_request:
	branches:
	- master

	jobs:
	check-warnings:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: ["3.12"]
	steps:
	- uses: actions/checkout@v4
	# https://github.com/actions/setup-python
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install deps
	run: \|
	pip install sphinx sphinx_rtd_theme
	pip install -r requirements.txt
	- name: Build project
	run: \|
	make clean html SPHINXOPTS="-w warnings.txt"
	- name: Cat warnings
	run: \|
	cat warnings.txt
	- name: Check warnings
	run: \|
	python _meta/check-warnings.py --fail warnings.txt

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