fix a java doc
import java.util.Map;
/**
- * WorldManager is a class which created the bridge between the world pools and the worlds added to the GameManifest.
+ * WorldManager is a class which creates the bridge between the world pools and the worlds added to the GameManifest.
* The class maintains a Map<WorldInfo, EngineEntityPool> and information about the target world. There are methods
* to add more pools and worlds to the map and to change the current world.
*/
