Fixed user guide internal & external links to resolve problems reported by sphinx "make linkcheck"
Signed-off-by:Master Yoda <jim_parry@bcit.ca>
diff --git a/user_guide_src/source/overview/features.rst b/user_guide_src/source/overview/features.rst
index 8c27b14..b230be9 100644
--- a/user_guide_src/source/overview/features.rst
+++ b/user_guide_src/source/overview/features.rst
@@ -8,7 +8,7 @@
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.
-`Installing <../installation/>`_ CodeIgniter is child's play so we
+: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
CodeIgniter's main features.