message: docs: add ng-conf 2021
  PR Close
diff: [
  + {
  + "name": "ng-conf",
  + "location": "Online",
  + "linkUrl": "https://www.2021.ng-conf.org/",
  + "date": {
  + "start": "2021-04-22",
  + "end": "2021-04-23"
  + },
  + "workshopsDate": {
  + "start": "2021-04-12",
  + "end": "2021-04-15"
  + }
  + },
  {
  "name": "Angular Global Summit",
  "location": "Online",
  