modify code based on review suggestions

Signed-off-by: tzhouam <tzhouam@connect.ust.hk>
Signed-off-by: 齐保元 <qibaoyuan@xiaomi.com>

examples/offline_inference/qwen_2_5_omni/run.sh

@@ -6,4 +6,4 @@ python end2end.py --model Qwen/Qwen2.5-Omni-7B \
                                  --output-wav output_audio \
                                  --prompt_type text \
                                  --init-sleep-seconds 0 \
-                                 --pt-prompts top100.pt
+                                 --pt-prompts <Your_Prompt_File>.pt