Add Vercel configuration for domain verification

domains/_vercel.kavindukodikara.json

@@ -0,0 +1,12 @@
+{
+    "owner": {
+        "username": "kavindu-kodikara",
+        "email": "kavindu29nk@gmail.com"
+    },
+    "records": {
+        "TXT": [
+            "vc-domain-verify=kavindukodikara.is-a.dev,67bf98886a5a482937df",
+            "vc-domain-verify=www.kavindukodikara.is-a.dev,a00e77994c8f93e42641"
+        ]
+    }
+}