update README.md

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README.md

@@ -20,7 +20,7 @@ Whisper is a pre-trained model for automatic speech recognition (ASR) and speech
 
 This int8 ONNX model is generated by [neural-compressor](https://github.com/intel/neural-compressor) and the fp32 model can be exported with below command:
 ```shell
-optimum-cli export onnx --model openai/whisper-small whisper-small-with-past/ --task automatic-speech-recognition-with-past --opset 13
+optimum-cli export onnx --model openai/whisper-tiny whisper-tiny-with-past/ --task automatic-speech-recognition-with-past --opset 13
 ```
 
 | Model Detail | Description |