Add Vercel configuration for domain verification

domains/_vercel.shankumar.json

@@ -0,0 +1,12 @@
+{
+  "owner": {
+    "username": "shankumar7",
+    "email": "Shankumarpitta714@gmail.com"
+  },
+  "records": {
+    "TXT": [
+      "vc-domain-verify=shankumar.is-a.dev,1ca85280039f9c6f585a",
+      "vc-domain-verify=www.shankumar.is-a.dev,2ff080a1086fa4299c52"
+    ]
+  }
+}