Add Vercel domain configuration for karthiks

domains/_vercel.karthiks.json

@@ -0,0 +1,9 @@
+{
+  "owner": {
+    "username": "itsKarthiks",
+    "email": "karthikofficialg@gmail.com"
+  },
+  "records": {
+    "TXT": "vc-domain-verify=karthiks.is-a.dev,5cb4f727fdfe64353933"
+  }
+}