Add Vercel configuration for domain verification

domains/_vercel.tusharvashishth.json

@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "vashishthtushar",
+        "email": "tusharvashishth469@gmail.com"
+    },
+    "records": {
+        "TXT": "vc-domain-verify=tusharvashishth.is-a.dev,49fa32a2e9560a3ba7e1"
+    }
+}