Add speaker name.
<th>Session Time</th>
<th>Session Title</th>
<th>Slide Link</th>
+ <th>Speaker</th>
</tr>
{% for slide in slides %}
<tr>
<td>{{ slide.presentation.slot.start }}&mdash;{{ slide.presentation.slot.end }}</td>
<td>{{ slide.presentation.title }}</td>
<td><a href='{{ slide.slides.url }}'>{{ slide.filename }}s</a></td>
+ <td>{{ slide.presentation.speaker.name }}</td>
</tr>
{% endfor %}
</table>
