[m-rev.] for review: update backends page on website

[Julien Fischer]

On Wed, 19 Jan 2022, Zoltan Somogyi wrote:

> On Wed, 19 Jan 2022 16:34:45 +1100 (AEDT), Julien Fischer <jfischer at opturion.com> wrote:
>> Note to reviewers: the content for the remaining backends has not changed,
>> although I have reformatted the source file.
>
> If you commit it, I will have a look.

Done.  Do you need me to update the live site as well?

Julien.