Update SDK_advanced_guide_online.md

Yabin Li

2023-08-08 9a73f202d8108973b6aface320d3fcb38fc11bbd

 funasr/models/encoder/abs_encoder.py

@@ -18,4 +18,4 @@
        ilens: torch.Tensor,
        prev_states: torch.Tensor = None,
    ) -> Tuple[torch.Tensor, torch.Tensor, Optional[torch.Tensor]]:
        raise NotImplementedError
        raise NotImplementedError