Add placeholder for having people get involved by fixing warnings (e.g., ResourceWarnings).
Add placeholder for having people get involved by fixing warnings (e.g., ResourceWarnings).

jeff5/jython-devguide,ezio-melotti/devguide,jeff5/jython-devguide,jython/devguide,jython/devguide,jeff5/jython-devguide,jython/devguide