pandas df loading tutorial: Fix incorrect suer().__init__() call

Author: vaharoni

site/en/tutorials/load_data/pandas_dataframe.ipynb

@@ -533,7 +533,7 @@
         "class MyModel(tf.keras.Model):\n",
         "  def __init__(self):\n",
         "    # Create all the internal layers in init.\n",
-        "    super().__init__(self)\n",
+        "    super().__init__()\n",
         "\n",
         "    self.normalizer = tf.keras.layers.Normalization(axis=-1)\n",
         "\n",