Fix typos in README
Fix typos in README

Fix typos in README about package name.

Change-Id: Iac01657dc420ed84991407d49ef1fa37714732cd

stackforge/monasca-api,openstack/monasca-api,openstack/monasca-api,stackforge/monasca-api,openstack/monasca-api,stackforge/monasca-api,stackforge/monasca-api