Update slug

Author: emrancu

routes/sidemenu.php

@@ -4,8 +4,8 @@
 use PluginMaster\Bootstrap\System\SideMenu;
 
 
-SideMenu::parent('PluginMaster')
+SideMenu::parent('plugin-master')
     ->menuTitle("Home | Plugin Master")
     ->child('Home','pluginmaster-home')->callback('SideMenuController@home') ;
 
-SideMenu::submenu('pluginmaster', 'About', 'pluginmaster-about')->callback('SideMenuController@about');
+SideMenu::submenu('plugin-master', 'About', 'pluginmaster-about')->callback('SideMenuController@about');