message: docs: add ng-japan 2019 event
  PR Close
diff: <td>Copenhagen, Denmark</td>
  <td>May 26 (workshops), 27-28 (conference), 2019</td>
  </tr>
  + <!-- ngJapan-->
  + <tr>
  + <th><a href="https://ngjapan.org" title="ng-japan">ng-japan</a></th>
  + <td>Tokyo, Japan</td>
  + <td>July 13, 2019</td>
  + </tr>
  <!-- AngularConnect 2019-->
  <tr>
  <th><a href="https://www.angularconnect.com/?utm_source=angular.io&utm_medium=referral" title="AngularConnect">AngularConnect</a></th>
  