added documentation for intern/vv.py
added documentation for intern/vv.py

d120/pyfeedback,TheMangalex/pyfeedback,TheMangalex/pyfeedback,d120/pyfeedback,TheMangalex/pyfeedback,d120/pyfeedback,TheMangalex/pyfeedback,TheMangalex/pyfeedback,d120/pyfeedback