add Rust code snippets to the tutorial (incl. CI execution) #1

	name: readme_rust

	defaults:
	run:
	shell: bash

	on:
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]
	schedule:
	- cron: '0 13 * * 4'

	jobs:
	rust:
	runs-on: ubuntu-latest
	steps:
	- uses: actions-rust-lang/setup-rust-toolchain@v1
	- uses: actions/setup-python@v1
	with:
	python-version: 3.9
	- run: pip install -e .
	- run: pip install pytest-codeblocks pytest
	- run: python -c "import pytest_codeblocks; code=pytest_codeblocks.extract_from_file('README.md'); f=open('readme.rs', 'w'); f.writelines(block.code for block in code if block.syntax=='Rust'); f.close()"
	- run: cargo run readme.rs

Provide feedback