Add Vercel configuration for domain verification

domains/_vercel.jx.json

@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "jaxendutta",
+        "email": "jaxendutta@gmail.com"
+    },
+    "records": {
+        "TXT": "vc-domain-verify=jx.is-a.dev,f7ace88e38945d42ff6b"
+    }
+}