add logo to static files

aircox_cms/templates/aircox_cms/snippets/list_item.html

@@ -10,6 +10,7 @@ Options:
 {% endcomment %}
 
 {% load static %}
+{% load i18n %}
 
 {% load wagtailimages_tags %}
 
@@ -33,7 +34,7 @@ Options:
         {% with date_format=item_date_format|default:'l d F, H:i' %}
         <time datetime="{{ item.date }}">
             {% if item.diffusion %}
-            <img src="{% static "aircox/images/clock.png" %}" class="small_icon">
+            <img src="{% static "aircox/images/clock.png" %}" title="{% trans "Diffusion" %}" class="small_icon">
             {{ item.diffusion.start|date:date_format }}
             {% else %}
             {{ item.date|date:date_format }}