working on docs

helpers.md

@@ -565,12 +565,11 @@ The `url` function generates a fully qualified URL to the given path:
 <a name="method-config"></a>
 #### `config()` {#collection-method}
 
-The `config` function gets the value of a configuration variable. The configuration values may be accessed using "dot" syntax, which includes the name of the file and option you wish to access. A default value may also be specified and will be returned if the configuration option does not exist:
+The `config` function gets the value of a configuration variable. The configuration values may be accessed using "dot" syntax, which includes the name of the file and the option you wish to access. A default value may be specified and is returned if the configuration option does not exist:
 
 	$value = config('app.timezone');
 
-	// Return a default value if the variable doesn't exist...
-	$value = config('app.timezone', 'America/Chicago');
+	$value = config('app.timezone', $default);
 
 <a name="method-csrf-field"></a>
 #### `csrf_field()` {#collection-method}