Add mubashirm.json for domain configuration

domains/mubashirm.json

@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "mubashirmuchi",
+        "email": "mubashirmuchi75@gmail.com"
+    },
+    "records": {
+        "CNAME": "my-portfolio-beta-lovat-28.vercel.app"
+    }
+}