Update changelog

Author: jonandersen

CHANGELOG.md

@@ -6,6 +6,10 @@ All notable changes to this project will be documented in this file.
 
 ## [Master](https://github.com/fulldecent/FDWaveformView/compare/3.0.0...master)
 
+#### Fixed
+- Fixed Highlight Samples not aligned to base waveform
+  - Added by [Jon Andersen](https://github.com/jonandersen)
+
 ---
 
 ## [3.0.0](https://github.com/fulldecent/FDWaveformView/releases/tag/3.0.0)