docs: replace kedro.io by kedro_datasets.partitions for PartitionedDa…

…taset (#3665)

Signed-off-by: Flavien Lambert <[email protected]>

docs/source/data/partitioned_and_incremental_datasets.md

@@ -38,7 +38,7 @@ Like any other dataset, `PartitionedDataset` can also be instantiated programmat
 
 ```python
 from kedro_datasets.pandas import CSVDataset
-from kedro.io import PartitionedDataset
+from kedro_datasets.partitions import PartitionedDataset
 
 my_credentials = {...}  # credentials dictionary