Bug#1123588: release.debian.org: please document how to request binNMUs with a specific number

[Simon McVittie <smcv@debian.org>]

Package: release.debian.org
Severity: wishlist

According to Emilio on #1123577, there is a syntax I could have used 
when asking for mesa to be binNMU'd as +b3 to bring !amd64 architectures 
back into sync with +b3 on amd64:

nmu 3 mesa . ANY ...

which would likely be safer than the one I asked for:

nmu mesa_25.2.8-2 . ANY -amd64 . unstable . -m "Rebuild to sync binNMU versions"

Could this be described in <https://release.debian.org/wanna-build.txt>?

Thanks,
    smcv