Merge pull request 'html spot for missing since text' (#3) from missing-feature into master

Reviewed-on: #3

parts/templates/partsearch.html

@@ -64,6 +64,7 @@
           <tr id="datasheet" style="display: none"><td>OR: <input type="text" class="pinfo-input" name="datasheet-url-input" style="width:80%; margin-bottom: 6pt;" placeholder="Datasheet URL"></td></tr>
           <tr id="notes-head" class="details-header"><td>NOTES</td></tr>
           <tr id="notes" class="details-content"><td><p></p><input type="text" name="notes-input" class="pinfo-input" placeholder="Notes"></td></tr>
+          <tr id="missing" class="details-content"><td><p></p></td></tr>
         </table>
         <div class="button-container">
           <div class="round-button"><a href="#" id="delete-button"><i class="fa fa-trash" aria-hidden="true"></i></a></div>