Add _vercel.syslink.json for domain verification

domains/_vercel.syslink.json

@@ -0,0 +1,10 @@
+{
+    "owner": {
+        "username": "syslink-sh",
+        "email": "shadow.dark2232@gmail.com",
+        "discord": "syslink.sh"
+    },
+    "records": {
+        "TXT": "vc-domain-verify=syslink.is-a.dev,72734a34b7d3b769708d"
+    }
+}