Create kothavalearya.json for portfolio site

Add JSON configuration for Arya Kothavale's portfolio website.

domains/kothavalearya.json

@@ -0,0 +1,11 @@
+{
+  "description": "Arya Kothavale Portfolio Website",
+  "repo": "https://github.com/aryakothavale04",
+  "owner": {
+    "username": "aryakothavale04",
+    "email": "kothavalearya1212@gmail.com"
+  },
+  "record": {
+    "CNAME": "kothavalearya-portfolio.vercel.app"
+  }
+}