[PATCH] README: update release URL

[Mark Wielaard]

Hi Jelle,

On Mon, 2025-07-07 at 20:14 +0200, Jelle van der Waa wrote:
> -Releases are published at ftp://sourceware.org/pub/debugedit/
> -Which can also be found at https://sourceware.org/debugedit/ftp/
> +Releases are published at https://sourceware.org/pub/debugedit/

Odd typo. I think what was originally meant was
https://sourceware.org/ftp/... (which is an alias for /pub/)
Thanks for spotting this.

Applied,

Mark