Small doc updates for llm cpu

docs/docs/examples/llm/ipex_llm.ipynb

@@ -10,7 +10,9 @@
     "\n",
     "This example goes over how to use LlamaIndex to interact with [`ipex-llm`](https://github.com/intel-analytics/ipex-llm/) for text generation and chat on CPU. \n",
     "\n",
-    "For more examples and usage, refer to [Examples](https://github.com/run-llama/llama_index/tree/main/llama-index-integrations/llms/llama-index-llms-ipex-llm/examples)."
+    "> **Note**\n",
+    ">\n",
+    "> You could refer to [here](https://github.com/run-llama/llama_index/tree/main/llama-index-integrations/llms/llama-index-llms-ipex-llm/examples) for full examples of `IpexLLM`. Please note that for running on Intel CPU, please specify `-d 'cpu'` in command argument when running the examples."
    ]
   },
   {