Fix Maven badge

Author: mpkorstanje

README.md

@@ -1,7 +1,7 @@
 # Usage Formatter
 ⚠️ This is an internal package; you don't need to install it in order to use the Usage Formatter.
 
-[![Maven Central](https://img.shields.io/maven-central/v/io.cucumber/cucumber-json-formatter.svg?label=Maven%20Central)](https://search.maven.org/search?q=g:io.cucumber%20AND%20a:usage-formatter)
+[![Maven Central](https://img.shields.io/maven-central/v/io.cucumber/usage-formatter.svg?label=Maven%20Central)](https://search.maven.org/search?q=g:io.cucumber%20AND%20a:usage-formatter)
 
 Writes usage statistics for step definitions