documentation: use correct classpath in V2 alias documentation. (#2078)

Co-authored-by: Rui Wang Napieralski <[email protected]>

Author: icywang86rui

doc/v2.rst

@@ -318,9 +318,9 @@ The follow serializer/deserializer classes have been renamed and/or moved:
 +--------------------------------------------------------+-------------------------------------------------------+
 | ``sagemaker.predictor._NPYSerializer``                 | ``sagemaker.serializers.NumpySerializer``             |
 +--------------------------------------------------------+-------------------------------------------------------+
-| ``sagemaker.amazon.common.numpy_to_record_serializer`` | ``sagemaker.amazon.serializers.RecordSerializer``     |
+| ``sagemaker.amazon.common.numpy_to_record_serializer`` | ``sagemaker.amazon.common.RecordSerializer``          |
 +--------------------------------------------------------+-------------------------------------------------------+
-| ``sagemaker.amazon.common.record_deserializer``        | ``sagemaker.amazon.deserializers.RecordDeserializer`` |
+| ``sagemaker.amazon.common.record_deserializer``        | ``sagemaker.amazon.common.RecordDeserializer``        |
 +--------------------------------------------------------+-------------------------------------------------------+
 | ``sagemaker.predictor._JsonDeserializer``              | ``sagemaker.deserializers.JSONDeserializer``          |
 +--------------------------------------------------------+-------------------------------------------------------+