Fix doc typo and make style consistent
Fix doc typo and make style consistent

Closes-Bug: #1428395

Change-Id: Id3445a1fae13cad4be78c2d25f4aaca48a227b31

hongbin/magnum,openstack/magnum,Tennyson53/magnum,sajuptpm/magnum,mjbrewer/testindex,eshijia/SUR,Tennyson53/SUR,annegentle/magnum,eshijia/SUR,ffantast/magnum,ChengTiesheng/magnum,LaynePeng/magnum,Alzon/SUR,Alzon/SUR,ddepaoli3/magnum,ramielrowe/magnum,openstack/magnum,dimtruck/magnum,hongbin/magnum,paulczar/magnum,LaynePeng/magnum,mjbrewer/testindex,Tennyson53/magnum,eshijia/magnum,paulczar/magnum,sajuptpm/magnum,mjbrewer/testindex,ramielrowe/magnum,dimtruck/magnum,ffantast/magnum,ddepaoli3/magnum,Tennyson53/SUR,jay-lau/magnum,ArchiFleKs/magnum,ChengTiesheng/magnum,annegentle/magnum,eshijia/magnum,ArchiFleKs/magnum