[Tails-l10n] Please translate Tails 0.23 announce and securi…

Hi,

in main Git repo, *master* branch:

* wiki/src/news/version_0.22.1.*.po
* wiki/src/security/Numerous_security_holes_in_0.22.*.po

I had not looked ahead far enough in the release process docs to realise
that this should be done at least a few days in advance of the release.
Therefore there's no deadline, so just do it as quickly as is convenient
for you.

Sorry about this.

Cheers!