Updated the Chef repo description
Updated the Chef repo description

The OpenStack Chef team has changed the chef-repo to something more than
it used to be. This is to update so the short description is closer to
what it is now.

Change-Id: Ib540881f93b1dbd80c5b4592c7846929a97dbed3

anbangr/osci-project-config,Tesora/tesora-project-config,noorul/os-project-config,Tesora/tesora-project-config,citrix-openstack/project-config,openstack-infra/project-config,openstack-infra/project-config,dongwenjuan/project-config,open-switch/infra_project-config,noorul/os-project-config,open-switch/infra_project-config,coolsvap/project-config,citrix-openstack/project-config,dongwenjuan/project-config,coolsvap/project-config,anbangr/osci-project-config