Updated config section

Change-Id: I445f2b222a7be3a6153438600eeebe727846e645
diff --git a/index.rst b/index.rst
index 2eae763..c78612f 100644
--- a/index.rst
+++ b/index.rst
@@ -38,7 +38,7 @@
    overview/3gpp-compliance-5g.rst
    overview/3gpp-compliance-4g.rst
    overview/faq.rst
-   glossary
+   glossary.rst
 
 .. toctree::
    :maxdepth: 2