Add sub menu item for localization

localization.md

@@ -1,6 +1,7 @@
 # Localization
 
 - [Introduction](#introduction)
+    - [Configuring The Locale](#configuring-the-locale)
 - [Defining Translation Strings](#defining-translation-strings)
     - [Using Short Keys](#using-short-keys)
     - [Using Translation Strings As Keys](#using-translation-strings-as-keys)
@@ -29,6 +30,7 @@ All language files return an array of keyed strings. For example:
         'welcome' => 'Welcome to our application'
     ];
 
+<a name="configuring-the-locale"></a>
 ### Configuring The Locale
 
 The default language for your application is stored in the `config/app.php` configuration file. Of course, you may modify this value to suit the needs of your application. You may also change the active language at runtime using the `setLocale` method on the `App` facade: