decisions & tweaks to Reviewed Signals before publication

At today's meeting 
<https://docs.google.com/document/d/1-KcB121I6D6J2ZdQET-qatqCaqv3ttlZkfhgyWEk7nM/edit> 
we agreed to publish the 2018 report as final (for that version) and 
publish a public review draft of the new reviewed signals document.  We 
agreed to include the journalism signals, and also to include a non-US 
one to balance out Pulitzer. Subbu volunteered RNG Awards 
<https://en.wikipedia.org/wiki/Ramnath_Goenka_Excellence_in_Journalism_Awards> 
and the group agreed to go ahead with that, giving folks until the 
weekend to object if it a problem turns up. If things continue to look 
okay, I'll do the official publication steps early next week, and we can 
spread the word and start to get feedback. We also agreed it would be 
good to have a page about the process, including which signals we're 
looking at next, which I'll draft and circulate.

For now, I've updated 
https://credweb.org/reviewed-signals-internal-draft/ to show "Any Award" 
and "Pulitzer Prize Recognition" as no longer Pending, and to included a 
draft of "RNG Awards" as pending. I expect the RNG text will be revised 
a bit later today.

I've also included a "CredWeb Process Note" slot, optionally on each 
signal, because people seemed to want more clarification about how the 
award signals fit together.  (Not that we really know, ... but it's a 
place to share our best guess at this point, so we can learn and improve 
from here.)  Hopefully that helps.

     -- Sandro