Add jianfeng.json with domain owner and records

domains/jianfeng.json

@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "CuteJJ",
+        "email": "jfchan2015@gmail.com"
+    },
+    "records": {
+        "CNAME": "CuteJJ.github.io"
+    }
+}