added credits
added credits

Change-Id: I598bca7c10f4a802b9026e86aeb213f2eea73016

brendangibat/logspout-redis-logstash,chrisferry/logspout-redis-logstash,nyxcharon/logspout-redis-logstash,schmunk42/logspout-redis-logstash,dkhunt27/logspout-redis-logstash,chrisferry/logspout-redis-logstash,schmunk42/logspout-redis-logstash,nyxcharon/logspout-redis-logstash,dkhunt27/logspout-redis-logstash,brendangibat/logspout-redis-logstash,rtoma/logspout-redis-logstash,rtoma/logspout-redis-logstash