Update README.md

README.md

@@ -27,11 +27,10 @@ Netron has experimental support for PyTorch, TensorFlow, TorchScript, OpenVINO,
 
 Sample model files to download or open using the browser version:
 
- * **ONNX**: [squeezenet](https://media.githubusercontent.com/media/onnx/models/master/vision/classification/squeezenet/model/squeezenet1.0-3.onnx) [[open](https://netron.app?url=https://media.githubusercontent.com/media/onnx/models/master/vision/classification/squeezenet/model/squeezenet1.0-3.onnx)]
+ * **ONNX**: [squeezenet](https://media.githubusercontent.com/media/onnx/models/main/vision/classification/squeezenet/model/squeezenet1.0-3.onnx) [[open](https://netron.app?url=https://media.githubusercontent.com/media/onnx/models/main/vision/classification/squeezenet/model/squeezenet1.0-3.onnx)]
  * **TensorFlow Lite**: [hair_segmentation](https://raw.githubusercontent.com/google/mediapipe/master/mediapipe/models/hair_segmentation.tflite) [[open](https://netron.app?url=https://raw.githubusercontent.com/google/mediapipe/master/mediapipe/models/hair_segmentation.tflite)]
  * **TensorFlow**: [chessbot](https://raw.githubusercontent.com/srom/chessbot/master/model/chessbot.pb) [[open](https://netron.app?url=https://raw.githubusercontent.com/srom/chessbot/master/model/chessbot.pb)]
  * **Keras**: [mobilenet](https://raw.githubusercontent.com/aio-libs/aiohttp-demos/master/demos/imagetagger/tests/data/mobilenet.h5) [[open](https://netron.app?url=https://raw.githubusercontent.com/aio-libs/aiohttp-demos/master/demos/imagetagger/tests/data/mobilenet.h5)]
- * **Caffe**: [mobilenet_v2](https://raw.githubusercontent.com/shicai/MobileNet-Caffe/master/mobilenet_v2.caffemodel) [[open](https://netron.app?url=https://raw.githubusercontent.com/shicai/MobileNet-Caffe/master/mobilenet_v2.caffemodel)]
  * **TorchScript**: [traced_online_pred_layer](https://raw.githubusercontent.com/ApolloAuto/apollo/master/modules/prediction/data/traced_online_pred_layer.pt) [[open](https://netron.app?url=https://raw.githubusercontent.com/ApolloAuto/apollo/master/modules/prediction/data/traced_online_pred_layer.pt)]
  * **Core ML**: [exermote](https://raw.githubusercontent.com/Lausbert/Exermote/master/ExermoteInference/ExermoteCoreML/ExermoteCoreML/Model/Exermote.mlmodel) [[open](https://netron.app?url=https://raw.githubusercontent.com/Lausbert/Exermote/master/ExermoteInference/ExermoteCoreML/ExermoteCoreML/Model/Exermote.mlmodel)]
  * **Darknet**: [yolo](https://raw.githubusercontent.com/AlexeyAB/darknet/master/cfg/yolo.cfg) [[open](https://netron.app?url=https://raw.githubusercontent.com/AlexeyAB/darknet/master/cfg/yolo.cfg)]