diff --git a/docs/source/api.rst b/docs/source/api.rst
index 2f2eced..d8069de 100644
--- a/docs/source/api.rst
+++ b/docs/source/api.rst
@@ -1,46 +1,46 @@
 API Documentation
-****
+*****************
 
 :mod:`pynetsym` -- Main package
-==============================
+===============================
 
 .. automodule:: pynetsym
     :members:
 
 
 :mod:`pynetsym.core` -- Main classes supporting the actor semantics
-==============================
+===================================================================
 
 .. automodule:: pynetsym.core
     :members:
 
 :mod:`pynetsym.nodes` -- Main classes supporting the actor/nodes semantics
-==============================
+==========================================================================
 
 .. automodule:: pynetsym.nodes
     :members:
 
 :mod:`pynetsym.simulation` -- Main classes supporting the simulation definition
-==============================
+===============================================================================
 
 .. automodule:: pynetsym.simulation
     :members:
 
 
 :mod:`pynetsym.configurators` -- Package for the configurator agents
-==============================
+====================================================================
 
 .. automodule:: pynetsym.configurators
     :members:
 
 :mod:`pynetsym.graph` -- Package for the network database implementations
-==============================
+=========================================================================
 
-.. automodule:: pynetsym.configurators
+.. automodule:: pynetsym.graph
     :members:
 
 :mod:`pynetsym.error` -- Generic exceptions for the project
-+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+===========================================================
 
 .. automodule:: pynetsym.error
     :members: