message: begin parameter name updates section
  testing HTML tables for multirow cells
diff: @@ -117,3 +117,30 @@ to all geometries and/or volumes in its group.
  `OSPWorld` is the final container for all `OSPInstance` objects. It can contain
  one or more instances. The world is passed along with a renderer, camera, and
  framebuffer to `ospRenderFrame` to generate an image.
  +
  +## Updated Public Parameter Names
  +
  +OSPRay 2.0.0 has updated public parameter names (the strings used in
  +`ospSetData`, for example) to a more consistent naming convention. OSPRay now
  +will print a warning (visible if debug logs are enabled) if a parameter
  +provided by the user is not used by an object. This can help catch cases where
  +applications are using parameter names from OSPRay 1.8.5 or mistyped names.
  +Some objects have required parameters. In these cases, OSPRay will terminate
  +with an error message indicating which object and which parameter.
  +
  +Below is a table of updated objects, their old parameter names, and the updated
  +equivalent names. In some cases, parameters have changed from taking a string
  +identifying an option to an enumerated value. The available options for these
  +values are listed.
  +
  +<table>
  + <tr>
  + <th>Object</th> <th>Old parameter name</th> <th>New parameter name</th>
  + </tr>
  + <tr>
  + <td rowspan="2">Camera</td> <td>pos</td> <td>position</td>
  + </tr>
  + <tr>
  + <td>dir</td> <td>direction</td>
  + </tr>
  +</table>
  