created romulo.json file

domains/romulo.json

@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "romulo-ribeiro",
+        "email": "romulo.developer42@proton.me"
+    },
+    "records": {
+        "CNAME": "romulo-ribeiro.github.io"
+    }
+}