git ssb

hey,

this group spec is exciting! i'm impressed with how closely it matches what i had in my mind as well.

some minor changes in this pull request:

• drops the .grp suffix from the group id (so it's the same as the hash of the creation message, except replaces the % sigil for @)
• documents how to alias a group id using an about message

@keks, i'm probably missing something, can you explain your thoughts on the .grp suffix?

:sparkles:

can you explain your thoughts on the .grp suffix?

well there is the .sig suffix for signatures and I wasn't sure whether at some point there is another use case to use hash values for identities but yeah, I guess we could drop it as the info that its a group is also in the message itself.

I also realised that the = prefix is not needed. We already have <base64>.sig.ed25519 without a = in the beginning so let's just drop it here to.

how to alias a group id using an about message

yeah this is neat example so its easier to get the concept.

Thanks for committing!

now I just need to find out how to merge...