Added javadoc for new methods used for annotation and fps

#story[23]

src/main/java/seng302/Controllers/RaceController.java

@@ -162,6 +162,7 @@ public class RaceController extends Controller{
 
         new Thread((race)).start();
 
+        //listener for fps
         showFPS.selectedProperty().addListener(new ChangeListener<Boolean>() {
             public void changed(ObservableValue<? extends Boolean> ov,
                                 Boolean old_val, Boolean new_val) {
@@ -173,6 +174,7 @@ public class RaceController extends Controller{
             }
         });
 
+        //listener for annotation
         showAnno.selectedProperty().addListener(new ChangeListener<Boolean>() {
             public void changed(ObservableValue<? extends Boolean> ov,
                                 Boolean old_val, Boolean new_val) {