A dedicated Github repository has been opened for this purpose:
As Atom’s packages are published on (and therefore installed from) atom.io via the
apm tool (both on the command line or in Atom’s GUI), any issues you find with reaching package information should be opened on this repository, along with other problems relating to the atom.io website.
Note that issues specifically with
apm itself should still be opened on https://github.com/atom/apm.