update readme

README.md

@@ -88,12 +88,10 @@ Basic usage example. Add predictions and references via `module.add_batch(predic
             [10, 16, 6, 10]
         ]
     ]
-
 >>> references = [
         [[10, 15, 20, 20]],
         [[30, 30, 5, 6]]
     ]
-
 >>> module.add_batch(predictions=predictions, references=references, predictions_scores=[[0.5,0.3],[0.8, 0.1]])
 >>> result = module.compute()
 >>> print(result)
@@ -123,9 +121,7 @@ We can specify different area range levels, at which we would like to compute th
         ("medium", [6 ** 2, 12 ** 2]),  
         ("large", [12 ** 2, 1e5 ** 2])
     ]
-
 >>> module = evaluate.load("./detection_metric.py", area_ranges_tuples=area_ranges_tuples)
-
 >>> predictions = [
         [
             [10, 15, 5, 5],
@@ -134,12 +130,10 @@ We can specify different area range levels, at which we would like to compute th
             [50, 50, 6, 10]
         ],
     ]
-
 >>> references = [
         [],
         [[10, 15, 5, 5]]
     ]
-
 >>> module.add_batch(predictions=predictions, references=references)
 >>> result = module.compute()
 >>> print(result)