[ci skip] Fix class reference sections of Image_lib, Parser and User agent docs
diff --git a/user_guide_src/source/libraries/image_lib.rst b/user_guide_src/source/libraries/image_lib.rst
index cde4e44..cf23e39 100644
--- a/user_guide_src/source/libraries/image_lib.rst
+++ b/user_guide_src/source/libraries/image_lib.rst
@@ -19,6 +19,13 @@
order for the script to calculate the image properties. The image
processing, however, will be performed with the library you specify.
+.. contents::
+ :local:
+
+.. raw:: html
+
+ <div class="custom-index container"></div>
+
**********************
Initializing the Class
**********************
diff --git a/user_guide_src/source/libraries/parser.rst b/user_guide_src/source/libraries/parser.rst
index 50bde82..34ad65f 100644
--- a/user_guide_src/source/libraries/parser.rst
+++ b/user_guide_src/source/libraries/parser.rst
@@ -147,7 +147,7 @@
Class Reference
***************
-.. class: CI_Parser
+.. class:: CI_Parser
.. method:: parse($template, $data[, $return = FALSE])
diff --git a/user_guide_src/source/libraries/user_agent.rst b/user_guide_src/source/libraries/user_agent.rst
index af76cfa..1b6a298 100644
--- a/user_guide_src/source/libraries/user_agent.rst
+++ b/user_guide_src/source/libraries/user_agent.rst
@@ -72,7 +72,7 @@
Class Reference
***************
-.. class: CI_User_agent
+.. class:: CI_User_agent
.. method:: is_browser([$key = NULL])