refactor(router): refactor base embed reduce router

Author: jemmyshin

Diff for: gnes/router/base.py

@@ -100,7 +100,7 @@ def reduce_embedding(self, accum_msgs: List['gnes_pb2.Message'], msg_type: str,
 
     def apply(self, msg: 'gnes_pb2.Message', accum_msgs: List['gnes_pb2.Message'], *args, **kwargs) -> None:
         """
-        reduce embeddings from encoders (means, concat ...)
+        reduce embeddings from encoders (means, concat ....)
         :param msg: the current message
         :param accum_msgs: accumulated messages
         """