Cuirass accessibility

[Mathieu Othacehe]

Hello,

As part of the Cuirass NLNet grant[1], the website at
https://ci.guix.gnu.org has been audited by the Accessibility
Foundation[2].

I have made the report public here[3]. Although I have already applied a
bunch of accessibility related fixes, there's still some work left. The
report if full of interesting teachings, and if some people want to join
me, they are more than welcome :).

Thanks,

Mathieu

[1]: https://othacehe.org/gnu-guix-continuous-integration---nlnet-grant.html
[2]: https://www.accessibility.nl/en/english
[3]: 
https://git.savannah.gnu.org/cgit/guix/guix-cuirass.git/commit/?id=a9925ec3b5c3be1ee1fe16d9fd51225a8be32a1d