docs: Documentation update

Change-Id: I6f916eb822a59e980e8fb1134886c3431755119c
diff --git a/helper/ndn-app-helper.hpp b/helper/ndn-app-helper.hpp
index 2b65f18..88051d4 100644
--- a/helper/ndn-app-helper.hpp
+++ b/helper/ndn-app-helper.hpp
@@ -33,8 +33,8 @@
 
 /**
  * @ingroup ndn-helpers
- * \brief A helper to make it easier to instantiate an ns3::NdnConsumer Application
- * on a set of nodes.
+ * @brief A helper to make it easier to instantiate an ns3::ndn::App applications
+ *        on a set of nodes
  */
 class AppHelper {
 public: