Mention the difference between dev_signed and release binaries in FAQ

[krystian-hebel]

No description provided.

[zirblazer]

Highly reelevant to this, in chat there were multiple people that have asked about the sha256 of the binaries you build yourself being wrong because the build instructions produces a binary with the same name than the one you get from Dasharo suscription, whereas the one you build yourself correspond to the dev_signed version. So perhaps you want the default filename to include dev_signed, or make it the default and make the suscription binary name different or whatever.