[ci skip] Fix a doc link causing a Sphinx compile warning
diff --git a/user_guide_src/source/overview/features.rst b/user_guide_src/source/overview/features.rst
index b230be9..f62546b 100644
--- a/user_guide_src/source/overview/features.rst
+++ b/user_guide_src/source/overview/features.rst
@@ -8,8 +8,8 @@
anything about the quality of the code, or the performance, or the
attention to detail, or security practices. The only way to really judge
an app is to try it and get to know the code.
-:doc:`Installing <../installation/>`_ CodeIgniter is child's play so we
-encourage you to do just that. In the mean time here's a list of
+:doc:`Installing <../installation/index>` CodeIgniter is child's play so
+we encourage you to do just that. In the mean time here's a list of
CodeIgniter's main features.
- Model-View-Controller Based System