Update doc/installation.rst #16

	name: Sphinx

	on:
	pull_request:
	paths:
	- "*/.rst"
	push:
	paths:
	- "*/.rst"

	permissions:
	contents: "read"

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	jobs:
	sphinx:
	name: Sphinx reStructuredText validity
	runs-on: ubuntu-latest
	timeout-minutes: 1
	steps:
	- name: Checkout repository
	uses: actions/checkout@v4
	- name: Cache pip
	uses: actions/cache@v3
	with:
	path: ~/.cache/pip
	key: ${{ runner.os }}-pip-sphinx-lint
	- name: Install sphinx-lint
	run: \|
	pip install --user sphinx-lint
	- name: Check Sphinx document sources
	run: \|
	git ls-files --cached -z -- '*.rst' \
	\| xargs --null -- python -m sphinxlint --enable all --disable trailing-whitespace --max-line-length 2000

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