#107 Improve JavaDoc for Observer example

observer/src/test/java/com/iluwatar/observer/AppTest.java

@@ -1,14 +1,19 @@
-package com.iluwatar.observer;
-
-import org.junit.Test;
-
-import com.iluwatar.observer.App;
-
-public class AppTest {
-
-	@Test
-	public void test() {
-		String[] args = {};
-		App.main(args);
-	}
-}
+package com.iluwatar.observer;
+
+import org.junit.Test;
+
+import com.iluwatar.observer.App;
+
+/**
+ * 
+ * Application test
+ *
+ */
+public class AppTest {
+
+	@Test
+	public void test() {
+		String[] args = {};
+		App.main(args);
+	}
+}