Update notebooks/build_person_directory.ipynb

Co-authored-by: Copilot <[email protected]>

Author: zhizhoualan

notebooks/build_person_directory.ipynb

@@ -166,7 +166,7 @@
     "# Convert the new face image to base64\n",
     "image_data = AzureContentUnderstandingFaceClient.read_file_to_base64(new_face_image_path)\n",
     "# Add the new face to the person directory and associate it with the existing person\n",
-    "face = client.add_face(person_directory_id, image_data, person['personId'])\n",
+    "face = client.add_face(person_directory_id, image_data, existing_person_id)\n",
     "if face:\n",
     "    print(f\"Added face from {new_face_image_path} with face_id: {face['faceId']} to person_id: {existing_person_id}\")\n",
     "else:\n",