Fix casadi example in the README #211

	name: Black action

	on:
	pull_request:
	push:
	branches:
	- main

	jobs:
	lint:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: black
	uses: psf/black@stable
	with:
	options: "--check --verbose"
	- name: Check for modified files
	id: git-check
	run: echo ::set-output name=modified::$(if git diff-index --quiet HEAD --; then echo "false"; else echo "true"; fi)
	- name: Push changes
	if: steps.git-check.outputs.modified == 'true'
	run: \|
	git config --global user.name "GitHub Actions"
	git config --global user.email "actions@github.com"
	git commit -am "Automatic formatting code"
	git push

Provide feedback