message: Document additional attributes for terminated postcodes resource
diff: </tr>
  </thead>
  <tbody>
  - <tr id="postcode">
  + <tr id="postcode-terminated">
  <td>postcode <br/> <code>string</code></td>
  <td><strong>Postcode. </strong>All currently terminated postcodes within the United Kingdom, the Channel Islands and the Isle of Man, received every 3 months from Royal Mail. 2, 3 or 4-character outward code, single space and 3-character
  inward code.</td>
  <td>month_terminated <br/> <code>integer</code></td>
  <td><strong>Termination month.</strong>Month of termination of a postcode. 1-January, 2-February, ..., 12-December</td>
  </tr>
  + <tr id="longitude-terminated">
  + <td>longitude <br/> <code>double float</code></td>
  + <td><strong>Longitude.</strong>The WGS84 longitude given the Postcode's national grid reference</td>
  + </tr>
  + <tr id="latitude-terminated">
  + <td>latitude <br/> <code>double float</code></td>
  + <td><strong>Latitude.</strong>The WGS84 latitude given the Postcode's national grid reference</td>
  + </tr>
  </tbody>
  </table>
  <h4>Places Data (Ordnance Survey Open Names Dataset)</h4>
  