Add tutorial that did actually run #111

	name: CI first code check

	on:
	push:
	workflow_dispatch:
	inputs:
	tag:
	description: Tag for manually running CI first code check workflow
	required: False
	default: ''

	jobs:
	first_check:
	name: first code check / python-3.13 / ubuntu-latest
	runs-on: ubuntu-latest
	steps:
	- name: Free Disk Space (Ubuntu)
	uses: jlumbroso/free-disk-space@main
	with:
	# this might remove tools that are actually needed,
	# when set to "true" but frees about 6 GB
	tool-cache: true
	- uses: actions/checkout@v4
	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: '3.13'

	- name: Python info
	run: \|
	which python
	python --version

	- name: Build package and create dev environment
	run: \|
	python -m pip install --upgrade pip poetry
	poetry config virtualenvs.create false
	poetry install --with dev

	- name: Show pip list
	run: \|
	pip list

	- name: Test with coverage
	run: \|
	poetry run pytest --cov --cov-report term --cov-report xml --junitxml=xunit-result.xml

	- name: Correct coverage paths
	run: sed -i "s+$PWD/++g" coverage.xml

	- name: Run ruff linter
	run: ruff check --output-format=github

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