doc: link to async_hooks destroy callback properly

PR-URL: nodejs/node#16351
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>

Author: maclover7

doc/api/async_hooks.md

@@ -636,6 +636,6 @@ constructor.
 
 [`after` callback]: #async_hooks_after_asyncid
 [`before` callback]: #async_hooks_before_asyncid
-[`destroy` callback]: #async_hooks_before_asyncid
+[`destroy` callback]: #async_hooks_destroy_asyncid
 [`init` callback]: #async_hooks_init_asyncid_type_triggerasyncid_resource
 [Hook Callbacks]: #async_hooks_hook_callbacks