docs: add "// ..." in sample code

Author: kenjis

user_guide_src/source/libraries/sessions/039.php

@@ -6,7 +6,9 @@
 
 class App extends BaseConfig
 {
-    public $sessionDriver   = 'CodeIgniter\Session\Handlers\DatabaseHandler';
+    // ...
+    public $sessionDriver = 'CodeIgniter\Session\Handlers\DatabaseHandler';
+    // ...
     public $sessionSavePath = 'ci_sessions';
     // ...
 }

user_guide_src/source/libraries/sessions/040.php

@@ -6,6 +6,7 @@
 
 class App extends BaseConfig
 {
+    // ...
     public $sessionDBGroup = 'groupName';
     // ...
 }

user_guide_src/source/libraries/sessions/041.php

@@ -6,7 +6,9 @@
 
 class App extends BaseConfig
 {
-    public $sessionDiver    = 'CodeIgniter\Session\Handlers\RedisHandler';
+    // ...
+    public $sessionDiver = 'CodeIgniter\Session\Handlers\RedisHandler';
+    // ...
     public $sessionSavePath = 'tcp://localhost:6379';
     // ...
 }

user_guide_src/source/libraries/sessions/042.php

@@ -6,7 +6,9 @@
 
 class App extends BaseConfig
 {
-    public $sessionDriver   = 'CodeIgniter\Session\Handlers\MemcachedHandler';
+    // ...
+    public $sessionDriver = 'CodeIgniter\Session\Handlers\MemcachedHandler';
+    // ...
     public $sessionSavePath = 'localhost:11211';
     // ...
 }

user_guide_src/source/libraries/sessions/043.php

@@ -6,6 +6,8 @@
 
 class App extends BaseConfig
 {
+    // ...
+
     // localhost will be given higher priority (5) here,
     // compared to 192.0.2.1 with a weight of 1.
     public $sessionSavePath = 'localhost:11211:5,192.0.2.1:11211:1';