Add domain config for dileepapeiris

Add domains/dileepapeiris.json containing owner metadata (username and email) and a CNAME record pointing to portfolio.dileepapeiris5.workers.dev to register the domain configuration.

domains/dileepapeiris.json

@@ -0,0 +1,9 @@
+{
+  "owner": {
+    "username": "dileepapeiris",
+    "email": "dileepapeiris5@gmail.com"
+  },
+  "records": {
+    "CNAME": "portfolio.dileepapeiris5.workers.dev"
+  }
+}