Render table header row correctly

[kaystrobach]

+-----------------------------------+---------------+-----------------------------------------------------------------------+
| Property                          | Data Type     |                                                                       |
+===================================+===============+=======================================================================+
| description                       | string        |                                                                       |
+-----------------------------------+---------------+-----------------------------------------------------------------------+
| author                            | string        |                                                                       |
+-----------------------------------+---------------+-----------------------------------------------------------------------+
| keywords                          | string        |                                                                       |
+-----------------------------------+---------------+-----------------------------------------------------------------------+

The equal signs should not appear in the html