added comment

orders/db/schema.cds

@@ -13,7 +13,7 @@ entity Orders_Items {
   up_       : Association to Orders;
   product   : Association to Products @assert.integrity:false; // REVISIT: this is a temporary workaround for a glitch in cds-runtime
   amount    : Integer;
-  title     : String;
+  title     : String; //> intentionally replicated as snapshot from product.title
   price     : Double;
 }