Add metadata file for zenodo.

Author: heejochoi

.zenodo.json

@@ -0,0 +1,14 @@
+{
+    "creators": [
+        {
+            "orcid": "0000-0002-2848-0267",
+            "affiliation": "Stanford University",
+            "name": "Choi, Heejo"
+        },
+        {
+            "orcid": "0000-0002-5993-8912",
+            "affiliation": "Stanford University",
+            "name": "Covert, Markus"
+        }
+    ],
+}