Adjust to latest capire docs

bookshop/srv/cat-service.cds

@@ -1,13 +1,15 @@
 using { sap.capire.bookshop as my } from '../db/schema';
 service CatalogService @(path:'/browse') {
 
-  @readonly entity Books as SELECT from my.Books { *,
+  /** For displaying lists of Books */
+  @readonly entity ListOfBooks as projection on Books
+  excluding { descr };
+
+  /** For display in details pages */
+  @readonly entity Books as projection on my.Books { *,
     author.name as author
   } excluding { createdBy, modifiedBy };
 
-  @readonly entity ListOfBooks as SELECT from Books
-  excluding { descr };
-
   @requires: 'authenticated-user'
   action submitOrder ( book: Books:ID, amount: Integer ) returns { stock: Integer };
   event OrderedBook : { book: Books:ID; amount: Integer; buyer: String };