Fix awkward sentences and unclear words

Re-word Host aggregates section to fix some awkward sentences and unclear words

Co-Authored-By: Nathaniel Dillon <nathaniel.dillon@hp.com>
Closes-Bug: #1344237
Change-Id: I7beedf55a05e0892d4f684d9d1bdb2089c1cdb36
Merge "Fix awkward sentences and unclear words"