[Docs] Modify the documentation description for streaming output (#2300)

Signed-off-by: amy-why-3459 <wuhaiyan17@huawei.com>

docs/user_guide/examples/online_serving/qwen3_omni.md

@@ -154,7 +154,7 @@ print(response.choices[1].message.audio)    # Audio response
 ```
 
 ## Streaming Output
-If you want to enable streaming output, please set the argument as below. The final output will be obtained just after generated by corresponding stage. Now we only support text streaming output. Other modalities can output normally.
+If you want to enable streaming output, please set the argument as below. The final output will be obtained just after generated by corresponding stage. We support both text streaming output and audio streaming output. Other modalities can output normally.
 ```bash
 python openai_chat_completion_client_for_multimodal_generation.py \
     --query-type use_image \

examples/online_serving/qwen3_omni/README.md

@@ -211,7 +211,7 @@ print(response.choices[1].message.audio)
 Supported speaker names depend on the model (e.g. `Ethan`, `Chelsie`, `Aiden`). Omit `speaker` to use the default.
 
 ## Streaming Output
-If you want to enable streaming output, please set the argument as below. The final output will be obtained just after generated by corresponding stage. Now we only support text streaming output. Other modalities can output normally.
+If you want to enable streaming output, please set the argument as below. The final output will be obtained just after generated by corresponding stage. We support both text streaming output and audio streaming output. Other modalities can output normally.
 ```bash
 python examples/online_serving/openai_chat_completion_client_for_multimodal_generation.py \
     --query-type use_image \