Added comment for ResetKIteration method in controller

src/Controller.cpp

@@ -178,6 +178,7 @@ void Controller::ImportControlParameters(std::string file_name){
     in.close();
 }
 
+// When we go into landing mode, reset the k_iteration_start_time and current_iteration_index
 void Controller::ResetKIteration(double current_time){
     k_iteration_start_time = current_time;
     current_iteration_index = 0;