bug#64154: 29.0.92; Provide additional details on GnuPG and EPA usage in epa.texi

[Jens Schmidt]

On 2023-07-02  04:15, Richard Stallman wrote:

> > Problem here being that epa.texi has no concept index yet.  Should I
> > create one from the existing chapters/sections/subsections in a separate
> > patch?
>
> It would be good to make a concept index, but please index all the
> concepts mentioned -- not just the ones that are names of secxtions.

I was initially hoping for the better-than-nothing half of Dick's quote 
from the Texinfo manual:

  Documentation is like sex: when it is good, it is very, very good;
  and when it is bad, it is better than nothing.  --Dick Brandon

But Eli is already trying hard to direct me otherwise, thanks.