[Gnso-ppsai-pdp-wg] A few small, but significant, revisions

Hi All, Per the invitation on the call today, I would like to propose a few small but significant revisions to our charter group questions document -- mostly to clarify suggestions already made and partially included in the new bullet points. Tx to Mary and Marika for taking a close look! (and track changes used, as requested :-)) Best, Kathy