Update df to dataset_df in sample notebook

Author: whoseoyster

examples/tabular-classification/sklearn/churn-classifier/churn-classifier-sklearn.ipynb

@@ -417,7 +417,7 @@
    "source": [
     "# Training set\n",
     "project.add_dataframe(\n",
-    "    df=training_set,\n",
+    "    dataset_df=training_set,\n",
     "    dataset_config_file_path=\"training_dataset_config.yaml\",\n",
     ")"
    ]
@@ -431,7 +431,7 @@
    "source": [
     "# Validation set\n",
     "project.add_dataframe(\n",
-    "    df=validation_set,\n",
+    "    dataset_df=validation_set,\n",
     "    dataset_config_file_path=\"validation_dataset_config.yaml\",\n",
     ")"
    ]
@@ -817,14 +817,6 @@
    "source": [
     "project.push()"
    ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "fd9670be",
-   "metadata": {},
-   "outputs": [],
-   "source": []
   }
  ],
  "metadata": {
@@ -843,7 +835,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.13"
+   "version": "3.8.10"
   }
  },
  "nbformat": 4,