Update readme_cn.md

Yabin Li

2023-10-16 a0561fab05d7edd35b4690bda96f3c600f2e753e

 funasr/build_utils/build_vad_model.py

@@ -50,6 +50,10 @@

def build_vad_model(args):
    # frontend
    if not hasattr(args, "cmvn_file"):
        args.cmvn_file = None
    if not hasattr(args, "init"):
        args.init = None
    if args.input_size is None:
        frontend_class = frontend_choices.get_class(args.frontend)
        if args.frontend == 'wav_frontend':