add GH preview css

application/config/config.php

@@ -701,7 +701,7 @@ $config['css_source_tbt'] = 'https://www.tibetguru.com/css/style.css';
 $config['css_source_mbj'] = 'https://www.mybeijingchina.com/css/layout.css';
 $config['css_source_yz'] = 'https://www.yangtzeriver.org/css/css3/bootstrap/bootstrap.css';
 $config['css_source_ah'] = 'https://www.asiahighlights.com/min/?f=/css/global.min.css,/js/bootstrap-datepicker/css/bootstrap-datepicker3.standalone.css,/css/basic.css,/css/homepage.css,/css/contact.css,/css/tailor-make.css,/css/tour.css,/css/tour-detail.css,/css/inquiry-form.css,/css/missing.css';
-$config['css_source_gh'] = ['https://www.globalhighlights.com/css/global.css','https://www.globalhighlights.com/css/footer.css'];
+$config['css_source_gh'] = 'https://www.globalhighlights.com/css/global.css';