docs: Update documentation and Doxygen documentation generation
diff --git a/model/pit/ndn-pit.h b/model/pit/ndn-pit.h
index 4c07fd2..0699479 100644
--- a/model/pit/ndn-pit.h
+++ b/model/pit/ndn-pit.h
@@ -30,6 +30,18 @@
namespace ns3 {
namespace ndn {
+/**
+ * @ingroup ndn
+ * @defgroup ndn-pit PIT
+ */
+
+/**
+ * @ingroup ndn-pit
+ * @brief Namespace for PIT operations
+ */
+namespace pit {
+}
+
class L3Protocol;
class Face;
class ContentObject;
@@ -42,8 +54,8 @@
////////////////////////////////////////////////////////////////////////
/**
- * \ingroup ndn
- * \brief Class implementing Pending Interests Table
+ * @ingroup ndn-pit
+ * @brief Class implementing Pending Interests Table
*/
class Pit : public Object
{