Fix dataset creation issue in the low level api example notebook (#43)

Author: alexlyzhov

examples/notebooks/aimon_sdk_langchain_summarization_low_level_api.ipynb

@@ -230,7 +230,7 @@
     "})\n",
     "\n",
     "dataset_data_2 = json.dumps({\n",
-    "    \"name\": \"test_evaluation_dataset_1.csv\",\n",
+    "    \"name\": \"test_evaluation_dataset_2.csv\",\n",
     "    \"description\": \"This is another custom dataset\"\n",
     "})\n",
     "\n",