added new verbiage to sample.xml for troplets
added new verbiage to sample.xml for troplets

tropo/tropo-samples,rsackler/tropo-samples,tropo/tropo-samples,rsackler/tropo-samples,rogervaas/tropo-samples,rsackler/tropo-samples,tropo/tropo-samples,rogervaas/tropo-samples,rogervaas/tropo-samples,tropo/tropo-samples,rsackler/tropo-samples,rogervaas/tropo-samples