Update 2023_lhc.md #928

	# Build documentation and upload to gh-pages
	name: Ensure documentation builds after commits

	defaults:
	run:
	shell: bash

	on: [push, pull_request] # Runs on all push events to any branch

	jobs:
	documentation:
	name: ${{ matrix.os }} / ${{ matrix.python-version }}
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest]
	python-version: [3.8]

	steps:
	- uses: actions/checkout@v3

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	cache: 'pip'
	cache-dependency-path: '**/requirements.txt'

	- name: Upgrade pip, setuptools and wheel
	run: python -m pip install --upgrade pip setuptools wheel

	- name: Install dependencies
	run: python -m pip install -r requirements.txt

	- name: Build documentation
	run: python -m mkdocs build -d ./doc_build

	- name: Upload build artifacts # upload artifacts so PR reviewers can have a quick look without building the branch locally
	uses: actions/upload-artifact@v3
	if: success() && github.event_name == 'pull_request'
	with:
	name: site-build
	path: doc_build
	retention-days: 5

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