Updated version in pom.xml example

Author: oschwald

README.md

@@ -19,7 +19,7 @@ To do this, add the dependency to your pom.xml:
     <dependency>
         <groupId>com.maxmind.maxminddb</groupId>
         <artifactId>maxminddb</artifactId>
-        <version>0.1.0</version>
+        <version>0.2.0</version>
     </dependency>
 ```