Update README.md

fix incomplete example

README.md

@@ -183,7 +183,11 @@ We can specify different area range levels, at which we would like to compute th
         gt_field=gt_field, 
         models=model_list
     )
->>> module = evaluate.load("./detection_metric.py", iou_thresholds=0.9)
+>>> module = evaluate.load(
+      "./detection_metric.py",
+      iou_thresholds=0.9,
+      area_ranges_tuples=area_ranges_tuples
+)
 >>> module.add_batch(payload)
 >>> result = module.compute()
 >>> print(result)