reference github with https, not git@
reference github with https, not git@

fixes #54

Yubico/yubico-pam,eworm-de/yubico-pam,madrat-/yubico-pam,eworm-de/yubico-pam,madrat-/yubico-pam,Yubico/yubico-pam,Yubico/yubico-pam,eworm-de/yubico-pam,madrat-/yubico-pam