[admin] Where to file issues?

I'm moving the discussion from
https://github.com/w3c/wpub/issues/52#issuecomment-326236323 as it's quite
meta :)

Ivan wrote:

> I wonder whether this issue should not be moved to the publ-wg issues'
list. Indeed, some of these affordances may be relevant or may be
realizable in a special PWP or EPUB4 environment only.

I will confess to being utterly confused about where issues should be
filed. My understanding was that the publ-wg repo was just for the PWG home
page and web presence. At the start of this process, I filed some rather
general issues there which would apply to WP/PWP/EPUB4 and was asked to
move them to this repo. Then there was the question of what should go in
email and what should be a github issue.

At this early stage, I'm concerned that we need to at least keep PWP and
EPUB4 in mind while designing WP. And I wonder if a little messiness in the
wpub repo is a reasonable price to pay to have everything in one place, and
avoid having to make lots of judgment calls. Later in the process, we could
migrate certain more specific issues to a PWP or EPUB4 repo.

Perhaps more use of labels in the wpub repo could be helpful in the short
term?

Thanks,

Dave