BAEL-2268 - Guide to JerseyTest

- Add line break to end of file

jersey/src/test/java/com/baeldung/jersey/server/GreetingsResourceIntegrationTest.java

@@ -30,4 +30,4 @@ public class GreetingsResourceIntegrationTest extends JerseyTest {
         String content = response.readEntity(String.class);
         assertEquals("Content of ressponse is: ", "hi", content);
     }
-}
+}