Create Vercel verification JSON for www.aditya-thakur

Added Vercel verification configuration for the domain www.aditya-thakur.

domains/_vercel.www.aditya-thakur.json

@@ -0,0 +1,11 @@
+{
+  "description": "Vercel verification for www.aditya-thakur",
+  "repo": "https://github.com/aditya0563/portfolio/tree/main",
+  "owner": {
+    "username": "aditya0563",
+    "email": "taditiya870@gmail.com"
+  },
+  "record": {
+    "TXT": "vc-domain-verify=www.aditya-thakur.is-a.dev,5687ab9d8625f0de4431"
+  }
+}