Add alt text to partner logos
{% if partner.logos.logo.url %}
<div class="partner-logo-container">
<a href="{% url 'partners:detail' partner.pk %}">
- <img src="{{ partner.logos.logo.url }}" class="img-responsive partner-logo">
+ <img src="{{ partner.logos.logo.url }}" class="img-responsive partner-logo" alt="Link to {{ partner }} signup page">
</a>
</div>
<hr />
