Fix documentation build CI workflow, spelling errors, and RST build issues #1438

	# Copyright 2024 Rainer Gerhards and Others
	#
	# https://github.com/rsyslog/rsyslog-pkg-ubuntu
	#
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# https://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,
	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	# See the License for the specific language governing permissions and
	# limitations under the License.

	---
	name: yamllint check

	on:
	pull_request:

	concurrency:
	group: ${{ github.workflow }}-${{ github.event.pull_request.number \|\| github.ref }}
	cancel-in-progress: true

	jobs:
	lint:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout repository
	uses: actions/checkout@v4
	with:
	fetch-depth: 2

	- name: Identify changed YAML files
	id: changed
	uses: tj-actions/changed-files@v46
	with:
	files: \|
	*/.yml
	*/.yaml

	- name: Install yamllint
	if: steps.changed.outputs.any_changed == 'true'
	run: pip install yamllint

	- name: Run yamllint
	if: steps.changed.outputs.any_changed == 'true'
	run: \|
	yamllint -d relaxed ${{ steps.changed.outputs.all_changed_files }}

	- name: Skip yamllint, no YAML changes
	if: steps.changed.outputs.any_changed != 'true'
	run: echo "No YAML files modified"

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