message: Point snippet syntax to spec.
diff: @@ -1453,7 +1453,7 @@ export namespace InsertTextFormat {
  * the end of the snippet. Placeholders with equal identifiers are linked,
  * that is typing in one will update others too.
  *
  - * See also: https://github.com/Microsoft/vscode/blob/master/src/vs/editor/contrib/snippet/common/snippet.md
  + * See also: https://microsoft.github.io/language-server-protocol/specifications/specification-current/#snippet_syntax
  */
  export const Snippet: 2 = 2;
  }
  