New conf represented in reference.conf (#71)

src/main/resources/reference.conf

@@ -720,6 +720,14 @@ kinesis {
          # Default: not set
          #ignoreUnexpectedChildShards = false
 
+         # The sleep time between two listShards calls from the proxy when throttled.
+         # Default: 1500
+         #listShardsBackoffTimeInMillis = 1500
+
+         # The number of times the Proxy will retry listShards call when throttled.
+         # Default: 50
+         #maxListShardsRetryAttempts = 50
+
       }
    }
 }