Remove extra whitespace

This is a whitespace removal patch

Change-Id: Ie42608e42eafe83e1e1b56bc4911fad9ad374083
Update preface in Admin User Guide

bug: #1218457

Change-Id: I29db8cb72bbc28c726d5d0eddc651e1304005372
author: diane fleming
Merge "Remove extra whitespace"
Merge "Update preface in Admin User Guide"