Как правильно установить CI3 Fire starter

// Site Details 
$config['site_version']          = "1.0.0";     // this is CI3 Fire Starter version - set it to 1.0.0 for your new project 
$config['root_folder']           = "htdocs";    // set to whatever your webroot is (htdocs, public_html, etc.) - MAKE SURE you physically rename the /htdocs folder if you change this value! 
$config['public_theme']          = "default";   // folder containing your public theme 
$config['admin_theme']           = "admin";     // folder containing your admin theme 
 
// Pagination 
$config['num_links']             = 8; 
$config['full_tag_open']         = "<div class=\"pagination\">"; 
$config['full_tag_close']        = "</div>"; 
 
// Login Attempts 
$config['login_max_time']        = 10;          // in seconds 
$config['login_max_attempts']    = 3; 
 
// Miscellaneous 
$config['profiler']              = FALSE; 
$config['error_delimeter_left']  = ""; 
$config['error_delimeter_right'] = "<br />";