Fix typo

Author: martignoni

CHANGELOG.md

@@ -3,7 +3,7 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](https://semver.org/) and follow principles of [keep a changelog](https://keepachangelog.com).
 
-## Version 2.4.1, 2019-10-07
+## Version 2.4.2, 2019-10-07
 
 ### Added
 - Wi-Fi password and SSID validation with meaningful message when invalid input, for better UX (issue #79).