lab2.md

@@ -384,7 +384,7 @@ ros2 interface show nav2_msgs/action/NavigateToPose
 
 Before starting the implementation, study the [official action tutorial](https://docs.ros.org/en/humble/Tutorials/Intermediate/Writing-an-Action-Server-Client/Cpp.html).
 
-We already modified the tutorial, so that you can use the following in ```random_exploration.py``` to go to a single location:
+We already modified the tutorial, so that you can use the following in ```random_exploration.cpp``` to go to a single location:
 
 ```c++
 #include <functional>