message: Clarify insertTextFormat
diff: @@ -2111,6 +2111,8 @@ export interface CompletionItem {
  * The format of the insert text. The format applies to both the `insertText` property
  * and the `newText` property of a provided `textEdit`. If omitted defaults to
  * `InsertTextFormat.PlainText`.
  + *
  + * Please note that the insertTextFormat doesn't apply to `additionalTextEdits`.
  */
  insertTextFormat?: InsertTextFormat;
  