Apply suggestion from @Thijss

Signed-off-by: Thijs Baaijen <[email protected]>

Author: Thijss

src/power_grid_model_ds/_core/model/grids/base.py

@@ -363,7 +363,7 @@ def get_downstream_nodes(self, node_id: int, inclusive: bool = False):
     def cache(self, cache_dir: Path, cache_name: str, compress: bool = True):
         """Cache Grid to a folder using pickle format.
 
-        Note: Consider using save_to_json() for better
+        Note: Consider using serialize() for better
         interoperability and standardized format.
 
         Args: