Change parameter name

Author: ahmedfgad

examples/example_multi_objective.py

@@ -53,7 +53,7 @@ def on_generation(ga_instance):
 # Running the GA to optimize the parameters of the function.
 ga_instance.run()
 
-ga_instance.plot_fitness(labels=['Obj 1', 'Obj 2'])
+ga_instance.plot_fitness(label=['Obj 1', 'Obj 2'])
 
 # Returning the details of the best solution.
 solution, solution_fitness, solution_idx = ga_instance.best_solution(ga_instance.last_generation_fitness)