Fix a bug in multiple apps example

evaluation_examples/examples/multi_apps/a82b78bb-7fde-4cb3-94a4-035baf10bcf0.json

@@ -23,6 +23,12 @@
         ]
       }
     },
+    {
+      "type": "sleep",
+      "parameters": {
+        "seconds": 2
+      }
+    },
     {
       "type": "download",
       "parameters": {
@@ -75,10 +81,10 @@
           "Liked Authors"
         ],
         "urls": [
-          "https://jimfan.me/",
-          "https://ai.stanford.edu/~dahuang/",
-          "https://yukezhu.me/",
-          "https://www.eas.caltech.edu/people/anima"
+          ["https://jimfan.me/", "https://research.nvidia.com/person/linxi-jim-fan"],
+          ["https://research.nvidia.com/person/de-an-huang", "https://ai.stanford.edu/~dahuang/"],
+          ["https://yukezhu.me/", "https://www.cs.utexas.edu/people/faculty-researchers/yuke-zhu", "https://experts.utexas.edu/yuke_zhu", "https://research.nvidia.com/person/yuke-zhu"],
+          ["http://tensorlab.cms.caltech.edu/users/anima/", "https://www.eas.caltech.edu/people/anima"]
         ]
       }
     }