Update turtlebot3_obstacle

src/sim/turtlebot3/turtlebot3_obstacle

@@ -25,6 +25,7 @@ from geometry_msgs.msg import Twist
 from datetime import datetime
 from gazebo_msgs.srv import GetWorldProperties
 
+#Angepasst für Log-Aufzeichnung
 topic = 'chatter'
 pub = rospy.Publisher(topic, String)