add rss icon

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

src/Wallabag/CoreBundle/Resources/views/themes/material/Tag/tags.html.twig

@@ -14,6 +14,9 @@
             {% for tag in tags %}
                 <li title="{{tag.label}} ({{ tag.nbEntries }})" id="tag-{{ tag.id }}" class="col l2 m2 s5">
                     <a href="{{ path('tag_entries', {'slug': tag.slug}) }}">{{tag.label}} ({{ tag.nbEntries }})</a>
+                    {% if app.user.config.rssToken %}
+                        <a href="{{ path('tag_rss', {'username': app.user.username, 'token': app.user.config.rssToken, 'slug': tag.slug}) }}" class="right"><i class="material-icons">rss_feed</i></a>
+                    {% endif %}
                 </li>
             {% endfor %}
         </ul>