update(python-udf-template): update message to indicate private preview status (#135)

Co-authored-by: Bharath Swamy <bswamy@b-sf-Pro.local>

Author: bharathts07

notebooks/python-udf-template/notebook.ipynb

@@ -30,6 +30,14 @@
         "</div>"
       ]
     },
+    {
+      "cell_type": "markdown",
+      "id": "9b6469e0",
+      "metadata": {},
+      "source": [
+        "<p>This feature is currently in Private Preview. Please reach out support@singlestore.com to confirm if this feature can be enabled in your org.</p>"
+      ]
+    },
     {
       "attachments": {},
       "cell_type": "markdown",
@@ -197,7 +205,9 @@
         "```\n",
         "SELECT review_id, store_name, review, review_sentiment_test(review) from reviews order by review_id;\n",
         "```\n",
-        "from the SQL editor or any other SQL client. Try it out by opening another notebook, selecting the current Database and running this query in a new cell."
+        "from the SQL editor or any other SQL client.\n",
+        "\n",
+        "Try it out by opening another notebook, selecting the current Database and running this query in a new cell."
       ]
     },
     {