docs: Documenting new L2Tracer with a scenario and graph building example
diff --git a/examples/wscript b/examples/wscript
index b21629e..af34ee6 100644
--- a/examples/wscript
+++ b/examples/wscript
@@ -42,6 +42,9 @@
         obj = bld.create_ns3_program('ndn-tree-app-delay-tracer', ['ndnSIM'])
         obj.source = 'ndn-tree-app-delay-tracer.cc'
 
+        obj = bld.create_ns3_program('ndn-tree-with-l2tracer', ['ndnSIM'])
+        obj.source = 'ndn-tree-with-l2tracer.cc'
+
     obj = bld.create_ns3_program('ndn-simple-pit-policies', ['ndnSIM'])
     obj.source = 'ndn-simple-pit-policies.cc'