onRender(evt) {
    const value = this.config.value || ''
    const Delta = window.Quill.import('delta')
    window.fbEditors.quill[this.id] = {}
    const editor = window.fbEditors.quill[this.id]
    editor.instance = new window.Quill(this.field, this.editorConfig)
    editor.data = new Delta()
    if (value) {
      editor.instance.setContents(window.JSON.parse(this.parsedHtml(value)))
    }
    editor.instance.on('text-change', function(delta) {
      editor.data = editor.data.compose(delta)
    })
    return evt
  }
When the element is rendered into the DOM, execute the following code to initialise it
@param {Object} evt - event