Use proper golden set format. (#1587)

examples/expositional/frameworks/llama_index/llama_index_groundtruth.ipynb

@@ -130,23 +130,23 @@
     "golden_set = [\n",
     "    {\n",
     "        \"query\": \"What was the author's undergraduate major?\",\n",
-    "        \"response\": \"He didn't choose a major, and customized his courses.\",\n",
+    "        \"expected_response\": \"He didn't choose a major, and customized his courses.\",\n",
     "    },\n",
     "    {\n",
     "        \"query\": \"What company did the author start in 1995?\",\n",
-    "        \"response\": \"Viaweb, to make software for building online stores.\",\n",
+    "        \"expected_response\": \"Viaweb, to make software for building online stores.\",\n",
     "    },\n",
     "    {\n",
     "        \"query\": \"Where did the author move in 1998 after selling Viaweb?\",\n",
-    "        \"response\": \"California, after Yahoo acquired Viaweb.\",\n",
+    "        \"expected_response\": \"California, after Yahoo acquired Viaweb.\",\n",
     "    },\n",
     "    {\n",
     "        \"query\": \"What did the author do after leaving Yahoo in 1999?\",\n",
-    "        \"response\": \"He focused on painting and tried to improve his art skills.\",\n",
+    "        \"expected_response\": \"He focused on painting and tried to improve his art skills.\",\n",
     "    },\n",
     "    {\n",
     "        \"query\": \"What program did the author start with Jessica Livingston in 2005?\",\n",
-    "        \"response\": \"Y Combinator, to provide seed funding for startups.\",\n",
+    "        \"expected_response\": \"Y Combinator, to provide seed funding for startups.\",\n",
     "    },\n",
     "]"
    ]