[Tails-dev] [doc] wiping flash media

hi,

https://tails.boum.org/forum/Wiping_Flash_Media:_Problem_in_TAILS_Doc/
reveals two serious problems in a section of our documentation: first,
it's unclear and may easily lead to confusion; second, it's wrong: the
paper we refer to clearly states that "Free space overwriting left
most of the data on the drive".

cheers,
--
intrigeri
| GnuPG key @ https://gaffer.ptitcanardnoir.org/intrigeri/intrigeri.asc
| OTR fingerprint @ https://gaffer.ptitcanardnoir.org/intrigeri/otr.asc