Homework 3 guidance

deliverables/src/MV3500Cohort2018JulySeptember/homework3/README.md

-Yea verily TODO
+## Homework 3
+
+Pick one of the provided course examples (single or multiple source files)
+and adapt it to block out a protocol of interest.
+
+Be sure to provide a rationale that justifies why the networking choices you made
+(TCP/UDP, unicast/multicast, etc.) are the best for the problem you are addressing.
+
+While some minimal functionality is expected, the general outline of a networking
+problem and proposed solution is of greatest interest.
+
+Refer to [Homework 2 README](../homework2/README.md) and [Assignments README](../../README.md)
+for further details on what specific deliverables are expected in your homework assignment.
+
+Team efforts are allowed, if you choose that approach be sure to note why.