Fix paths for Network Admin Guide

Change-Id: I11846c1b41e613c1ab03582a894c3c74a99d44f6
correcting paths to high-availability-guide

Change-Id: Idc61f8a19e57231a77aecc6ccd5f1fa066e0d78c
Merge "correcting paths to high-availability-guide"
Merge "Fix paths for Network Admin Guide"