Fix business application created naming (#43)

* fix: BusinessApplicationCreated naming

* feat: version bump to 0.2.1

Author: YegorZh

README.md

@@ -25,7 +25,7 @@ Add this dependency to your project's POM:
     <dependency>
         <groupId>co.unit</groupId>
         <artifactId>java-sdk</artifactId>
-        <version>0.2.0</version>
+        <version>0.2.1</version>
     </dependency>
 </dependencies>
 ```