add convenience link to archive directory

examples/src/SimkitOpenDis7Examples/README.md

 # Simkit DIS Examples
 
-This directory includes simple Simkit programs which are getting modified to
+[This directory](https://gitlab.nps.edu/Savage/NetworkedGraphicsMV3500/-/tree/master/examples/src/SimkitOpenDis7Examples) includes simple Simkit programs which are getting modified to
 utilize opendis7-java libraries for PDU output.
 
 ## Design Goals