more accurate mAP(0.01 correction)

README.md

@@ -70,7 +70,7 @@ The model was trained for 140 epochs on 1 RTX 4060 Ti GPU(Finetuning decoder onl
 
 ## Evaluation results
 
-This model achieves an mAP of **59.0** on SKU110k validation set. Result was calculated with torchmetrics MeanAveragePrecision class.
+This model achieves an mAP of **58.9** on SKU110k validation set. Result was calculated with torchmetrics MeanAveragePrecision class.
 
 ## Training Code