Add _vercel.shreshth.json for domain verification

domains/_vercel.shreshth.json

@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "Shreshth-1",
+        "email": "shresthtyagi2004@gmail.com"
+    },
+    "records": {
+        "TXT": "vc-domain-verify=shreshth.is-a.dev,dbced4fb75e804f42598"
+    }
+}