docs: Document update for load_extended_matadata in GoogleDriveLoader (#20950)

Document: Updated google_drive,ipynb for loading following extended
metadata.
 - full_path - Full path of the file/s in google drive.
 - owner - owner of the file/s.
 - size - size of the file/s.

Code changes:
[langchain-google/pull/179.](https://github.com/langchain-ai/langchain-google/pull/179)

Signed-off-by: Rahul Tripathi <rauhl.psit.ec@gmail.com>
Co-authored-by: Rahul Tripathi <rauhl.psit.ec@gmail.com>
Co-authored-by: Bagatur <22008038+baskaryan@users.noreply.github.com>

docs/docs/integrations/document_loaders/google_drive.ipynb

@@ -368,6 +368,54 @@
     "doc[0].metadata"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "id": "5ae0a525",
+   "metadata": {},
+   "source": [
+    "### Loading extended metadata\n",
+    "Following extra fields can also be fetched within metadata of each Document:\n",
+    " - full_path - Full path of the file/s in google drive.\n",
+    " - owner - owner of the file/s.\n",
+    " - size - size of the file/s."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "6c0db38c",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "from langchain_google_community import GoogleDriveLoader\n",
+    "\n",
+    "loader = GoogleDriveLoader(\n",
+    "    folder_id=folder_id,\n",
+    "    load_extended_matadata=True,\n",
+    "    # Optional: configure whether to load extended metadata for each Document.\n",
+    ")\n",
+    "\n",
+    "doc = loader.load()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "826d88a7",
+   "metadata": {},
+   "source": [
+    "You can pass load_extended_matadata=True, to add Google Drive document extended details to metadata."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "fdaf04e4",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "doc[0].metadata"
+   ]
+  },
   {
    "cell_type": "markdown",
    "id": "cd13d7d1-db7a-498d-ac98-76ccd9ad9019",