Update sess_time_to_update description (rel #2397)
diff --git a/.travis.yml b/.travis.yml
index 4b745b7..fa9d5e5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -25,4 +25,4 @@
 branches:
   only:
     - develop
-    - /^feature\/.+$/
+    - /^feature\/.+$/
\ No newline at end of file
diff --git a/user_guide_src/source/libraries/sessions.rst b/user_guide_src/source/libraries/sessions.rst
index 36c7c1d..2f8bea0 100644
--- a/user_guide_src/source/libraries/sessions.rst
+++ b/user_guide_src/source/libraries/sessions.rst
@@ -252,7 +252,7 @@
 ===================
 
 You'll find the following Session related preferences in your
-application/config/config.php file:
+*application/config/config.php* file:
 
 =========================== =============== =========================== ==========================================================================
 Preference                  Default         Options                     Description
@@ -271,7 +271,8 @@
                                                                         table before enabling this option (Cookie driver only).
 **sess_table_name**         ci_sessions     Any valid SQL table name    The name of the session database table (Cookie driver only).
 **sess_time_to_update**     300             Time in seconds             This options controls how often the session class will regenerate itself
-                                                                        and create a new session id.
+                                                                        and create a new session ID. Setting it to 0 will disable session
+                                                                        ID regeneartion.
 **sess_match_ip**           FALSE           TRUE/FALSE (boolean)        Whether to match the user's IP address when reading the session data.
                                                                         Note that some ISPs dynamically changes the IP, so if you want a
                                                                         non-expiring session you will likely set this to FALSE.