fix: update readwise example to work without duplicating nodes

this is a workaround to the fact that readwise use cursor pagination
instead of offset pagination, proper handling will be added later

pkg/workpool.go

@@ -240,7 +240,6 @@ func workUnitDispatcher[T, S any](
 			config.TasksProcessed.Add(1)
 
 		case <-ctx.Done():
-			fmt.Println("context done")
 			return
 		}
 	}