Refine T5 BKC for jax and jaxlib version (#111)

example/t5/README.md

@@ -35,9 +35,9 @@ For benchmarking, you could skip this step because our model script will downloa
 
 ```
 git clone https://github.com/google-research/t5x.git
-cd t5x
 bash install_xpu.sh
 pip install --upgrade intel-extension-for-openxla
+pip install jax==0.4.13 jaxlib==0.4.13
 ```
 ## Inference