feat: register rumman.is-a.dev

domains/rumman.json

@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "rumman999",
+        "email": "rumman.rk17@gmail.com"
+    },
+    "records": {
+        "CNAME": "rumman999.github.io"
+    }
+}