Note Updated Assignment, link NPS Multicast Connectivity Report

assignments/src/MV3500Cohort2019JulySeptember/homework3/README.md

 ## Homework 3: Recording OpenDIS Network Streams
 
-* OpenDIS PDU Track Sender, modifying provided code
+### Updated Assignment, August 2019
+
+Students worked together on a single project to check wireless multicast connectivity recently deployed on NPS campus.  See their experimental results in the [NPS Multicast Connectivity Report](MOVES2020_MV3500_Connectivity_Report.pdf).
+
+### Original Assignment
+
+* Adapt the functionality for OpenDIS PDU Track Sender, modifying provided code
 * Result streams are recorded/saved/replayed using X3D-Edit or Wireshark.
 
 *Freeplay opportunity!*  Pick one of the provided course example programs