Improve docstring for categories_property per #1244 #1294

	name: Build documentation, check links, spelling, grammar, and style
	on:
	push:
	branches:
	- main
	paths:
	- 'docs/**'
	# Build pull requests
	pull_request:
	paths:
	- 'docs/**'
	- 'Makefile'
	- 'src/icalendar/*.py'
	- 'src/icalendar/cal/*.py'
	- 'src/icalendar/prop/*.py'
	- 'src/icalendar/timezone/*.py'
	- 'styles/**'
	- '.github/workflows/rtd-pr-preview.yml'
	- '.github/workflows/documentation.yml'
	- '.readthedocs.yaml'
	- '.vale.ini'
	- 'uv.lock'

	jobs:
	docs:
	name: Documentation
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: ['3.11', '3.14']
	steps:
	- uses: actions/checkout@v6
	with:
	fetch-depth: 0
	fetch-tags: true

	- name: Install uv
	uses: astral-sh/setup-uv@v7
	with:
	# Install a specific version of uv.
	version: "0.9.3"

	- name: Set up Python
	uses: actions/setup-python@v6
	with:
	python-version: ${{ matrix.python-version }}

	- name: Create Python virtual environment, install requirements
	run: make .venv PYTHONVERSION=${{ matrix.python-version }}

	- name: Build HTML documentation
	run: make html PYTHONVERSION=${{ matrix.python-version }}

	- name: Run vale
	run: make vale VALEOPTS="--minAlertLevel='warning'" PYTHONVERSION=${{ matrix.python-version }}

	- name: Check for broken links
	run: make linkcheckbroken PYTHONVERSION=${{ matrix.python-version }}

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