Fix link to template repo in example command
Fix link to template repo in example command

Change-Id: Idd5f2f6b51178b846a2cb34953c2d3e4cfa94098
Signed-off-by: Romanos Skiadas <b3ba87190db143bc9b544c2c621f0044ae85ae3a@gmail.com>

openstack/puppet-openstack-cookiecutter,openstack/puppet-openstack-cookiecutter,openstack/puppet-openstack-cookiecutter