Fixing links in top-level readme.
Fixing links in top-level readme.

pkgcloud/pkgcloud,hacor/pkgcloud,temka1234/pkgcloud,dionjwa/pkgcloud,songanbui/pkgcloud,Phanatic/pkgcloud,mdsummers/pkgcloud,Phanatic/pkgcloud,bunglestink/pkgcloud,apla/pkgcloud,andrewsomething/pkgcloud,DonSchenck/pkgcloud,Hopebaytech/pkgcloud,mcanthony/pkgcloud