message: Faster `edit-readme`
diff: import React from 'dom-chef';
  import select from 'select-dom';
  import PencilIcon from 'octicon/pencil.svg';
  +import elementReady from 'element-ready';
  import * as pageDetect from 'github-url-detection';
  import features from '.';
  @@ -9,7 +10,7 @@ import {isPermalink} from '../github-helpers';
  import getDefaultBranch from '../github-helpers/get-default-branch';
  async function init(): Promise<void | false> {
  - const readmeHeader = select('#readme .Box-header h2');
  + const readmeHeader = await elementReady('#readme .Box-header h2');
  if (!readmeHeader) {
  return false;
  }
  @@ -56,5 +57,6 @@ void features.add({
  include: [
  pageDetect.isRepoTree
  ],
  + waitForDomReady: false,
  init
  });
  