[RFC] Process to request a vote for an issue

[Cornelia Huck <cohuck@redhat.com>]

[first of all: there are still issues with our usage of the platform...]

[Also, first discussing this on virtio-comment, as this is (a) where
people who want to submit changes usually are subscribed, and (b) an
actually working list, unlike the list for the TC...]

The current process to include an update in the spec is something like
the following:
- open a github issue
- post a patch on the list, link it from the issue
  - iterate through some review cycles
- ask for a vote, so that the Chairs will open a ballot

The last step currently mostly happens in the thread for the latest
revision; such an email is easily missed if you're not actively
following the discussion. IMHO it isn't a very reasonable expectation
for the chairs to follow each and every discussion in detail; at some
point, it is much more reasonable to expect trusted reviewers and SMEs
to reach a consensus.

Therefore, I propose that
- request for votes be posted in a new, separate thread, referring to
  the version proposed for inclusion and ideally containing a note on
  who deems this proposal ready for inclusion,
- and those requests be clearly marked in the subject, for example with
  a "[Request for vote]" prefix that can be easily filtered for.

Thoughts, comments?