Update backup

scripts/backup

@@ -22,15 +22,11 @@ ynh_print_info --message="Declaring files to be backed up..."
 ynh_backup --src_path="$install_dir"
 
 #=================================================
-# BACKUP THE NGINX CONFIGURATION
+# SYSTEM CONFIGURATION
 #=================================================
 
 ynh_backup --src_path="/etc/nginx/conf.d/$domain.d/$app.conf"
 
-#=================================================
-# BACKUP SYSTEMD
-#=================================================
-
 ynh_backup --src_path="/etc/systemd/system/$app.service"
 
 #=================================================