added notes to spendingModule.js
added notes to spendingModule.js

boknows/cFIREsim-open,jchristian/cFIREsim-open,jchristian/cFIREsim-open,jchristian/cFIREsim-open,treble37/cFIREsim-open,treble37/cFIREsim-open,boknows/cFIREsim-open,treble37/cFIREsim-open,boknows/cFIREsim-open