Fix JSDoc

Author: Shinigami92

src/utility-types.d.ts

@@ -2,5 +2,5 @@
  * A literal type that supports custom further strings but preserves autocompletion in IDEs.
  *
  * @see [copied from issue](https://github.com/microsoft/TypeScript/issues/29729#issuecomment-471566609)
- * */
+ */
 export type LiteralUnion<T extends U, U = string> = T | (U & { zz_IGNORE_ME?: never });