docs: Update documentation and Doxygen documentation generation
diff --git a/utils/ndn-limits-rate.h b/utils/ndn-limits-rate.h
index b21184a..0823cc7 100644
--- a/utils/ndn-limits-rate.h
+++ b/utils/ndn-limits-rate.h
@@ -28,7 +28,7 @@
 namespace ndn {
 
 /**
- * \ingroup ndn
+ * \ingroup ndn-fw
  * \brief Structure to manage limits for outstanding interests
  */
 class LimitsRate :