Add an alias for /development/wiki/GetABacktrace to the debugging page

Testing Done:
Ran `npm hugo:server` and verified that `/development/wiki/GetABacktrace` redirected to `/development/debugging'

Reviewed at
title: Advisories
type: security
layout: advisories
weight: 100
This page lists all potential security vulnerabilities discovered since August
1st, 2004 in Pidgin (or Gaim), Finch, libpurple, or any official plugins
included with those programs.