Please help outputting the icons

Hi,

I’ve installe the plugin but i only see the icons in admin, not in frontend. (i know this is my fault)

I want to show the icons in sidebar categories

this is the cound i find in sidebar.php

<?php
$catList=wp_list_categories(array(                               'show_count'=>false,'show_empty'=>true,'echo'=>false,'title_li'=>''
                                )) ;
echo str_replace ( '</a>', '<i class="icon-chevron-right"></i></a>', $catList );  ?>

can you please tell me what should I add to this code?

Is there anything I have to add also to function.php?

Thanks a lot
Patrick

https://wordpress.org/plugins/taxonomy-icons/