Update README.md (intel#11889)

Set datasets version to 2.16.1. Clear out the transformers version requirement.

python/llm/example/GPU/PyTorch-Models/Model/speech-t5/README.md

@@ -15,8 +15,7 @@ conda activate llm
 # below command will install intel_extension_for_pytorch==2.1.10+xpu as default
 pip install --pre --upgrade ipex-llm[xpu] --extra-index-url https://pytorch-extension.intel.com/release-whl/stable/xpu/us/
 
-pip install transformers==4.36.2
-pip install "datasets<2.18" soundfile # additional package required for SpeechT5 to conduct generation
+pip install "datasets==2.16.1" soundfile # additional package required for SpeechT5 to conduct generation
 ```
 
 #### 1.2 Installation on Windows
@@ -28,8 +27,7 @@ conda activate llm
 # below command will install intel_extension_for_pytorch==2.1.10+xpu as default
 pip install --pre --upgrade ipex-llm[xpu] --extra-index-url https://pytorch-extension.intel.com/release-whl/stable/xpu/us/
 
-pip install transformers==4.36.2
-pip install "datasets<2.18" soundfile # additional package required for SpeechT5 to conduct generation
+pip install "datasets==2.16.1" soundfile # additional package required for SpeechT5 to conduct generation
 ```
 
 ### 2. Configures OneAPI environment variables for Linux