feat: add GitHub Pages verification for rumman.is-a.dev

domains/_github-pages-challenge-rumman999.rumman.json

@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "rumman999",
+        "email": "rumman.rk17@gmail.com"
+    },
+    "records": {
+        "TXT": "b0693ded6b54a0d94ca1317db67b26"
+    }
+}