update cpu requirement

README.md

@@ -164,19 +164,14 @@ Generated: Hello! How can I assist you today? 😊
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 ### INT4 Inference on CPU with ITREX(Recommended)
 
-**pip3 install auto-round** (it will install intel-extension-for-pytorch and intel-extension-for-transformers both). For intel cpu, it will  prioritize using intel-extension-for-pytorch , for other cpus, it will prioritize using intel-extension-for-transformers.
+Requirements
 
-**To make sure to use qbits with intel-extension-for-transformers, please uninstall intel-extension-for-pytorch**
-
-intel-extension-for-transformers: faster repacking, slower inference,higher accuracy
-
-intel-extension-for-pytorch:  much slower repacking, faster inference, lower accuracy
+~~~bash
+pip install auto-round
+pip install intel-extension-for-transformers
+~~~
 
 ~~~python
 from auto_round import AutoRoundConfig ##must import for autoround format