Get both names for commonmarker support
Get both names for commonmarker support

Docs weren't clear about what string to to use here in the
`showoff.json`, so let's just get both forms of the name.

binford2k/showoff,puppetlabs/showoff,puppetlabs/showoff,puppetlabs/showoff,binford2k/showoff,binford2k/showoff,puppetlabs/showoff,binford2k/showoff