docs: Update documentation and Doxygen documentation generation
diff --git a/apps/ndn-consumer-batches.h b/apps/ndn-consumer-batches.h
index 22b9b0c..23a75c9 100644
--- a/apps/ndn-consumer-batches.h
+++ b/apps/ndn-consumer-batches.h
@@ -29,7 +29,7 @@
 namespace ndn {
 
 /**
- * @ingroup ndn
+ * @ingroup ndn-apps
  * \brief Ndn application for sending out Interest packets in batches
  */
 class ConsumerBatches: public Consumer