Merge pull request #25796 from dtdong08/dtdong08

Create dong.json

domains/dong.json

@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "dtdong08",
+        "email": "dangtrongdong08@gmail.com"
+    },
+    "records": {
+        "CNAME": "dtdong08.github.io"
+    }
+}