[docs] Missing example from code

Hi, On this page, http://docs.python.org/tutorial/controlflow.html there is no example in the code of a "continue" statement (section 4.4). It is explained, but not actually used in code. It would be simple to include, I think. Hope this helps! -- Jesse Bikman Department of Marine Science Graduate Student/Graduate Teaching Assistant Luettich lab University of North Carolina at Chapel Hill LinkedIn