Change badge label
Groovydoc is not correct anymore. The API docs are Javadoc now.
@@ -2,7 +2,7 @@ image:https://github.com/bmuschko/gradle-docker-plugin/workflows/Build%20and%20R
image:https://github.com/bmuschko/gradle-docker-plugin/workflows/Build%20%5BWindows%5D/badge.svg["Build Status", link="https://github.com/bmuschko/gradle-docker-plugin/actions?query=workflow%3A%22Build+%5BWindows%5D%22"]
image:https://img.shields.io/badge/user%20guide-latest-red["User Guide", link="https://bmuschko.github.io/gradle-docker-plugin/current/user-guide/"]
image:https://img.shields.io/badge/dev%20guide-latest-orange["Developer Guide", link="https://bmuschko.github.io/gradle-docker-plugin/current/dev-guide/"]
-image:https://img.shields.io/badge/groovydoc-latest-9cf["Groovydoc", link="https://bmuschko.github.io/gradle-docker-plugin/current/api/"]
+image:https://img.shields.io/badge/api%doc-latest-9cf["API Doc", link="https://bmuschko.github.io/gradle-docker-plugin/current/api/"]
image:https://badges.gitter.im/Join%20Chat.svg["Gitter", link="https://gitter.im/gradle-docker-plugin/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge"]
= Gradle Docker plugin
