Register vincentperez.is-a.dev for Vercel deployment

Add domains/vincentperez.json with Vercel A record and
domains/_vercel.vincentperez.json with TXT verification,
following https://docs.is-a.dev/guides/vercel

Co-authored-by: Vincent Perez <vincentperezzz@users.noreply.github.com>

domains/_vercel.vincentperez.json

@@ -0,0 +1,9 @@
+{
+  "owner": {
+    "username": "vincentperezzz",
+    "email": "perezvincent100@gmail.com"
+  },
+  "records": {
+    "TXT": "vc-domain-verify=vincentperez.is-a.dev,faf861251dbc2faefa06"
+  }
+}

domains/vincentperez.json

@@ -0,0 +1,9 @@
+{
+  "owner": {
+    "username": "vincentperezzz",
+    "email": "perezvincent100@gmail.com"
+  },
+  "records": {
+    "A": ["216.198.79.1"]
+  }
+}