modify onnx readme

lyblsgo

2023-04-21 c5739295abbd2b37476f54e578330e3105f958d7

 funasr/runtime/onnxruntime/src/funasr-onnx-offline.cpp

@@ -52,7 +52,7 @@
    }
    else
    {
        printf("no return data!");
        printf("no return data!\n");
    }
 
    printf("Audio length %lfs.\n", (double)snippet_time);