Update CHANGELOG

Author: tokk-nv

CHANGELOG.md

@@ -1,6 +1,8 @@
 # Changes
 
-## [Master]
+## [0.4.2]
+
+## [0.4.1] - 10/22/2020
 
 ### Added
 
@@ -39,4 +41,4 @@
 
 [Master]: https://github.com/NVIDIA-AI-IOT/jetbot/compare/v0.4.0...HEAD
 [0.4.0]: https://github.com/NVIDIA-AI-IOT/jetbot/compare/v0.3.0...v0.4.0
-[0.3.0]: https://github.com/NVIDIA-AI-IOT/jetbot/releases/tag/v0.3.0
+[0.3.0]: https://github.com/NVIDIA-AI-IOT/jetbot/releases/tag/v0.3.0