meta: fix links in SECURITY.md

PR-URL: nodejs#54696
Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>

SECURITY.md

@@ -222,6 +222,6 @@ Security notifications will be distributed via the following methods.
 
 ## Comments on this policy
 
-If you have suggestions on how this process could be improved please submit a
-[pull request](https://github.com/nodejs/nodejs.org) or
-[file an issue](https://github.com/nodejs/security-wg/issues/new) to discuss.
+If you have suggestions on how this process could be improved, please visit
+the [nodejs/security-wg](https://github.com/nodejs/security-wg)
+repository.