Correct port

Author: Tom-Willemsen

doc/specific_iocs/dae/Datastreaming.md

@@ -46,7 +46,8 @@ This is controlled using flags in the `isisicp.properties` file:
 isisicp.kafkastream = true
 # if not specified, topicprefix will default to instrument name in code
 isisicp.kafkastream.topicprefix =
-isisicp.kafkastream.broker = livedata.isis.cclrc.ac.uk:9092
+# FIA team run their kafka cluster on port 31092, not 9092
+isisicp.kafkastream.broker = livedata.isis.cclrc.ac.uk:31092
 isisicp.kafkastream.topic.suffix.runinfo = _runInfo
 isisicp.kafkastream.topic.suffix.sampleenv = _sampleEnv
 isisicp.kafkastream.topic.suffix.alarms = _alarms