Update README.md

Author: bubbliiiing

README.md

@@ -16,8 +16,8 @@
 ## 性能情况
 | 训练数据集 | 权值文件名称 | 测试数据集 | 输入图片大小 | mAP 0.5:0.95 | mAP 0.5 |
 | :-----: | :-----: | :------: | :------: | :------: | :-----: |
-| VOC07+12 | [voc_weights_resnet.pth](https://github.com/bubbliiiing/faster-rcnn-pytorch/releases/download/v1.0/voc_weights_resnet.pth) | VOC-Test07 | - | - | 77.87
-| VOC07+12 | [voc_weights_vgg.pth](https://github.com/bubbliiiing/faster-rcnn-pytorch/releases/download/v1.0/voc_weights_vgg.pth) | VOC-Test07 | - | - | 75.22
+| VOC07+12 | [voc_weights_resnet.pth](https://github.com/bubbliiiing/faster-rcnn-pytorch/releases/download/v1.0/voc_weights_resnet.pth) | VOC-Test07 | - | - | 80.36
+| VOC07+12 | [voc_weights_vgg.pth](https://github.com/bubbliiiing/faster-rcnn-pytorch/releases/download/v1.0/voc_weights_vgg.pth) | VOC-Test07 | - | - | 77.46
 
 ## 所需环境
 torch == 1.2.0