The Markdown parser used supports embeddable HTML. For example, the following block:
<table style="width:100%;border:1px solid black;">
<tr>
<td>Jill</td>
<td>Smith</td>
<td>50</td>
</tr>
<tr>
<td>Eve</td>
<td>Jackson</td>
<td>94</td>
</tr>
</table>
will be rendered as:
Jill | Smith | 50 |
Eve | Jackson | 94 |