[DOCS] Fix typo in write_parquet's parameters (#3252)

Should be `write_mode` not `mode`.

daft/dataframe/dataframe.py

@@ -528,7 +528,7 @@ def write_parquet(
         Args:
             root_dir (str): root file path to write parquet files to.
             compression (str, optional): compression algorithm. Defaults to "snappy".
-            mode (str, optional): Operation mode of the write. `append` will add new data, `overwrite` will replace table with new data. Defaults to "append".
+            write_mode (str, optional): Operation mode of the write. `append` will add new data, `overwrite` will replace table with new data. Defaults to "append".
             partition_cols (Optional[List[ColumnInputType]], optional): How to subpartition each partition further. Defaults to None.
             io_config (Optional[IOConfig], optional): configurations to use when interacting with remote storage.