Update README.md

README.md

@@ -185,7 +185,7 @@ We can specify different area range levels, at which we would like to compute th
     )
 >>> module = evaluate.load(
       "./detection_metric.py",
-      iou_thresholds=0.9,
+      iou_threshold=0.9,
       area_ranges_tuples=area_ranges_tuples
 )
 >>> module.add_batch(payload)