Update README.md

README.md

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 # Dataset Card for "monetjoe/cv_backbones"
 This repository consolidates the collection of backbone networks for pre-trained computer vision models available on the PyTorch official website. It mainly includes various Convolutional Neural Networks (CNNs) and Vision Transformer models pre-trained on the ImageNet1K dataset. The entire collection is divided into two subsets, V1 and V2, encompassing multiple classic and advanced versions of visual models. These pre-trained backbone networks provide users with a robust foundation for transfer learning in tasks such as image recognition, object detection, and image segmentation. Simultaneously, it offers a convenient choice for researchers and practitioners to flexibly apply these pre-trained models in different scenarios.
 
-## Viewer
+## Data structure
 |      ver      |     type      |    input_size    |                url                |
 | :-----------: | :-----------: | :--------------: | :-------------------------------: |
 | backbone name | backbone type | input image size | url of pretrained model .pth file |