added a comment line that explains how to output file to csv. The output function is a built-in one from pandas, but I always forget to set index=False, so I'm recording it in the comment for posterity.
added a comment line that explains how to output file to csv. The output function
is a built-in one from pandas, but I always forget to set index=False, so I'm
recording it in the comment for posterity.

ddandur/Twords