fix doctest

Author: jeromedockes

doc/guides/utilities/customizing_configuration.rst

@@ -39,7 +39,7 @@ are available by using
 >>> import skrub
 >>> config = skrub.get_config()
 >>> config.keys()
-dict_keys(['use_table_report_data_ops', 'table_report_plots_threshold', 'table_report_associations_threshold', 'table_report_verbosity', 'subsampling_seed', 'enable_subsampling', 'float_precision', 'cardinality_threshold', 'data_dir', 'eager_data_ops', 'data_ops_open_graph_dropdown'])
+dict_keys(['use_table_report_data_ops', 'table_report_plots_threshold', 'table_report_associations_threshold', 'table_report_n_rows', 'table_report_verbosity', 'subsampling_seed', 'enable_subsampling', 'float_precision', 'cardinality_threshold', 'data_dir', 'eager_data_ops', 'data_ops_open_graph_dropdown'])
 
 These are the parameters currently available in the global configuration: