cleanup of ch_openstack_images

removed: to name given to the instance
changed sentence - additional to addition, (in addition)
added key after public

Change-Id: I5cb22fece1e868503bda35c4f1da1d43ea64c4ee
cleanup of section_centos_example

package typo corrected to package
correction: of changed to or
removed extra "the"
added the in sentence "for the the first time"

Change-Id: I557f71a405c5bd54ba8c0c19a6fd2123005b7c0d
cleanup of ch_section_ubuntu

changed some wording, upon to on
changed able to, to on the internet
one of another changed to one or another
changed boot the install to boot for the first time
know longer changed to no longer

Change-Id: I3eb70dd628602b92f5456b48c09ee0ad4870de48
Merge "cleanup of ch_section_ubuntu"
Merge "cleanup of section_centos_example"
Merge "cleanup of ch_openstack_images"
Update OpenStack Orchestration to Orchestration module

Change-Id: Iabcb6dc3e6d3869dd6c8eed8da1af588e75ce5f8
backport: havana
Closes-bug: 1277105
Merge "Update OpenStack Orchestration to Orchestration module"