Let's still continue to tell people to not file some issues but allow
them to file others.
While we're here, let's me a bit more chill with the language here.
Submitting bug reports hasn't worked for a while because of the missing
`label`.
My editor complained about `labels` needing to be an array, so I've made
that one too. It was also complaining about the missing label property
for the checkboxes, so I guess it knows what it's talking about here.
- Don't require `brew update` (as we run it automatically now)
- Don't ask about `brew doctor` until after they have pasted output (and
ask them if it has any `Warning` lines)
