improvement(perception): adjusted some comments

Signed-off-by: Moritz Schweppenhäuser <[email protected]>

fed/mosaic-application/src/main/java/org/eclipse/mosaic/fed/application/ambassador/simulation/perception/index/TrafficObjectIndex.java

@@ -131,7 +131,7 @@ public void updateVehicles(Iterable<VehicleData> vehiclesToUpdate) {
     }
 
     /**
-     * Returns the amount of indexed vehicles.
+     * Returns the number of indexed vehicles.
      *
      * @return the number of vehicles
      */
@@ -155,8 +155,8 @@ public List<TrafficLightObject> getTrafficLightsInRange(PerceptionModel percepti
     }
 
     /**
-     * Adds traffic lights to the spatial index, as their positions are static it is sufficient
-     * to store positional information only once.
+     * Adds traffic lights to the spatial index, as their positions are static,
+     * it is enough to store positional information only once.
      *
      * @param trafficLightGroup the registered traffic light group
      */