Update README.md

add short note about jupytext

README.md

@@ -29,6 +29,7 @@ Generated project consists of:
     * a very minimal python code + example test
 1. pre-commit hooks:
     * `black`, `flake8` - enforce code style
+    * `jupytext` - (optional) sync jupyter notebooks to plain python files
     * `pycln` - cleanups unused imports
     * `mypy` - checks type errors
     * `isort` - sorts imports