FLUME-2399. Minor update to Release notes.
FLUME-2399. Minor update to Release notes.

iaiengxia/flume,szaboferee/flume,szaboferee/flume,iaiengxia/flume,tmgstevens/flume,tinawenqiao/flume,iaiengxia/flume,tinawenqiao/flume,tinawenqiao/flume,szaboferee/flume,tmgstevens/flume,iaiengxia/flume,tinawenqiao/flume,tmgstevens/flume,tmgstevens/flume,szaboferee/flume