Minor edits to the specification

[Andrew Gallagher]

Hi, Werner.

On 05/11/2025 13:23, Werner Koch via LibrePGP-discuss wrote:
>     Some of us are currently looking into anti-spam measurements and thus
>     are playing with a proposed feature named "Label signature" which is
>     a kind of outer signature around an encrypted message.  I took the
>     freedom to resevere the packet tag 42 for this as well as two
>     signature classes.

I'm intrigued! What's the use case? Is there any documentation? I'm 
curious why this would need two separate signature types...

A