Updating documentation
diff --git a/docs/source/conf.py b/docs/source/conf.py
index 8da1d3a..54b990e 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -25,7 +25,7 @@
 
 # Add any Sphinx extension module names here, as strings. They can be extensions
 # coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
-extensions = []
+extensions = [ "sphinx.ext.autodoc", "sphinxcontrib.doxylink" ]
 
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ['_templates']
@@ -240,3 +240,8 @@
 
 # How to display URL addresses: 'footnote', 'no', or 'inline'.
 #texinfo_show_urls = 'footnote'
+
+doxylink = {
+  'ndnsim' : ('ndnSIM.tag', '../../doxygen/html/'),
+}
+