steps_in_epoch wrongly assigned to generator_params in cli_examples

[asumser]

Hi there! Thanks for the tool and the support. Minor bug in the examples while transitioning to cli I suppose in the current versions of the scripted cli_example_* (all of them I think) steps per epoch are set for generator_param and generator_test_param generator_test_param["steps_per_epoch"] = steps_per_epoch generator_param["steps_per_epoch"] = steps_per_epoch

which throw an error as not available key and should be removed. steps_per_epoch however should be a parameter for training_params: training_param["steps_per_epoch"] = steps_per_epoch