update readme

README.md

@@ -1,9 +1,14 @@
 # Watch2Gether API
+[![Download](https://img.shields.io/github/v/release/c-eg/watch2getherapi)](https://github.com/c-eg/watch2getherapi/releases)
 ![GitHub License](https://img.shields.io/github/license/c-eg/watch2getherapi)
 
 This library provides a Java-wrapper around the [JSON API](https://community.w2g.tv/t/watch2gether-api-documentation/133767) provided by
 [Watch2Gether](https://w2g.tv/), which is a service to watch videos online with others.
 
+## Setup
+It's available via [Maven Central](https://central.sonatype.com/artifact/uk.co.conoregan/watch2getherapi). Just add it as dependency to your
+project.
+
 ## Usage
 To register for a Watch2Gether API key, click Tools / API from within your [profile page](https://w2g.tv/en/account/edit_user/).