Modify invalid URL.
Modify invalid URL.

When we visit URL 'http://rtomayko.github.com/shocco/' 
it will jump automatically to 'https://rtomayko.github.io/shocco/'
so this patch modified 'http://rtomayko.github.com/shocco/' to
https://rtomayko.github.io/shocco/' .

Change-Id: I8b8cc27feb02108cb43caf10a318281a2d8c8108

openstack-dev/grenade,openstack-dev/grenade