updt CHANGELOG

Author: RolefH

com.ibm.streamsx.messagehub/CHANGELOG.md

@@ -1,6 +1,8 @@
 # Changes
 ==========
 
+## develop/latest
+
 ## v3.3.0
 * [#116](https://github.com/IBMStreams/streamsx.messagehub/issues/116) Makefiles of sample application prepared for CP4D Streams build service, supports build with [VS Code](https://marketplace.visualstudio.com/items?itemName=IBM.ibm-streams)
 * [IBMStreams/streamsx.kafka/#218](https://github.com/IBMStreams/streamsx.kafka/issues/218) support incremental cooperative rebalancing