message: Added data-pptx-width option
diff: @@ -1168,7 +1168,9 @@ Any variety of HTML tables can be turned into a series of slides (auto-paging) b
  | `addText` | string | | add text to each slide | Use the established syntax. |
  ## Table-to-Slides HTML Options
  -A minimum column width can be specified by adding a `data-pptx-min-width` attribute to any given `<th>` tag.
  +Add an `data` attribute to the table's `<th>` tag to manually size columns (inches)
  +* minimum column width can be specified by using the `data-pptx-min-width` attribute
  +* fixed column width can be specified by using the `data-pptx-width` attribute
  Example:
  ```HTML
  @@ -1178,7 +1180,7 @@ Example:
  <th data-pptx-min-width="0.6" style="width: 5%">Row</th>
  <th data-pptx-min-width="0.8" style="width:10%">Last Name</th>
  <th data-pptx-min-width="0.8" style="width:10%">First Name</th>
  - <th style="width:75%">Description</th>
  + <th data-pptx-width="8.5" style="width:75%">Description</th>
  </tr>
  </thead>
  <tbody></tbody>
  @@ -1188,6 +1190,7 @@ Example:
  ## Table-to-Slides Notes
  * Default `x`, `y` and `margin` value is 0.5 inches, the table will take up all remaining space by default (h:100%, w:100%)
  * Your Master Slides should already have defined margins, so a Master Slide name is the only option you'll need most of the time
  +* Hidden tables wont auto-size their columns correctly (as the properties are not accurate)
  ## Table-to-Slides Examples
  ```javascript
  