Update README.md

Author: daniel3514

README.md

@@ -2,7 +2,7 @@
 
 ## **Firmware - LCD 20x4**
 
-[![version](https://img.shields.io/badge/version-0.0_release-brightgreen.svg)](CHANGELOG.md)
+[![version](https://img.shields.io/badge/version-0.0-brightgreen.svg)](CHANGELOG.md)
 [![license](https://img.shields.io/badge/licence-GNU_GPL_v3.0-blue)](https://github.com/Arduino-DMX-512-Tester-and-Controller/Arduino-DMX-512-Tester-and-Controller-LCD-20x4-Firmware/blob/master/LICENCE.md)
 
 ![GitHub issues](https://img.shields.io/github/issues/Arduino-DMX-512-Tester-and-Controller/Arduino-DMX-512-Tester-and-Controller-LCD-20x4-Firmware)