Adds legal block to README

Author: colindean

README.md

@@ -10,3 +10,9 @@ in the meantime.
 Then, run `make check test build` to build the distributable.
 Run `poetry run example-make-python-devex` to see the app in action.
 
+## Legal Notices
+
+See [LICENSE](LICENSE.md) for licensing information.
+
+"Python" and the Python logos are trademarks or registered trademarks of the Python Software Foundation,
+used by Target [with permission](https://www.python.org/psf/trademarks/#how-to-use-the-trademarks) from the Foundation.