cmd for unit test changed

Author: ulf1

README.md

@@ -29,7 +29,7 @@ Python commands
 
 * Jupyter for the examples: `jupyter lab`
 * Check syntax: `flake8 --ignore=F401 --exclude=$(grep -v '^#' .gitignore | xargs | sed -e 's/ /,/g')`
-* Run Unit Tests: `python -W ignore -m unittest discover`
+* Run Unit Tests: `pytest`
 * Upload to PyPi with twine: `python setup.py sdist && twine upload -r pypi dist/*`
 
 Clean up