Add the Freedom of the Press Foundation to the gVisor users page.

[EtiennePerot]

[EtiennePerot]

@apyrgio Can you check if the description of the Freedom of the Press Foundation and/or Dangerzone is accurate?

Also, can you (re-)confirm that it's OK to use the Freedom of the Press Foundation logo here? This will appear on gvisor.dev/users.

Note: This currently links to the Dangerzone developer docs on gVisor, but if/when there is a better link as a blog post in the future, we can update the link to that.

[apyrgio]

The descriptions of FPF/Dangerzone and the link to our design document looks fine to me. As for the logo, it's in line with our branding guidelines, so we're good on this front as well.

Thanks for the inclusion :-)