ansible: Fix some issues with the README.md
ansible: Fix some issues with the README.md

This commit fixes two errors with the README.md file that prevent one
from installing ciao via ansible.

Signed-off-by: Mark Ryan <f16215f7acd0bd7fdc465539215bd574c785b062@intel.com>

kaccardi/ciao,tpepper/ciao,mcastelino/ciao,kaccardi/ciao,markdryan/ciao,ciao-project/ciao,matthewrsj/ciao,01org/ciao,mcastelino/ciao,mrkz/ciao,mrkz/ciao,tpepper/ciao,matthewrsj/ciao,erick0z/ciao,rbradford/ciao,01org/ciao,obedmr/ciao,matthewrsj/ciao,mcastelino/ciao,tpepper/ciao,erick0z/ciao,obedmr/ciao,erick0z/ciao,mrkz/ciao,obedmr/ciao,ciao-project/ciao,markdryan/ciao,rbradford/ciao