add note about pruning behavior for ApiBasedRepositoryLoader

src/loaders/ApiBasedRepositoryLoader.ts

@@ -8,6 +8,11 @@ export class ApiResponseError extends Error {
   }
 }
 
+/**
+ * Class which can load data into a repository from the
+ * Passio Go API. Supports automatic pruning of all data types
+ * which inherit from `IEntityWithId`.
+ */
 export class ApiBasedRepositoryLoader {
   supportedSystemIds = ["263"];
   baseUrl = "https://passiogo.com/mapGetData.php";