added tag for php insertion in nginx.conf

etc/nginx/nginx.conf

@@ -33,6 +33,8 @@ http {
     # set default document root for all sites
     root /usr/share/nginx/html;
 
+    #<insert PHP handler here if applicable>
+
     # logging options
     log_format main '$remote_addr - $remote_user [$time_local] $request '
         '$status $body_bytes_sent "$http_referer" '