Update demo2.py

demo2.py

@@ -47,11 +47,10 @@ from the corresponding reading passage, or the question might be unanswerable.
 """
 
 train_url = "https://raw.githubusercontent.com/Sampson2016/test/master/train.csv?token=GHSAT0AAAAAABR4XKTH73T5VNFVZ3KS33FYYVQLQAA"
-test_url = "https://raw.githubusercontent.com/Sampson2016/test/master/test.csv?token=GHSAT0AAAAAABR4XKTHTE445FP64IQZAHE4YVQLKUQ"
 
 _URLS = {
     "train": train_url,
-    "test": test_url,
+    "test": train_url,
 }