Update changes.md

Fix enhancedLegendRenderer element hide mismatch - By Daniel G

Author: dg-hub

src/changes.md

@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 - Formatting of _changes.txt_ changelog to the recommended formatting.
 - Renamed changes.txt to changes.md.
+- Fix enhancedLegendRenderer element hide mismatch - By Daniel G (@dg-spark)
 
 ## [1.0.9] - 2016-02-16
 ### Added
@@ -460,4 +461,4 @@ Duplicate of 0.6.6 with a suffix to unambiguously differentiate between previous
 
 ---
 __Note:__ For changes prior to 0.6.0 release, please see change log at <https://github.com/Slicer/jqplot/releases?after=0.6.0>
----
+---