Removal of passive voice from ArchDesign Guide

Removed passive voice from Compute Focus Section. Made additional edit on
line 348 to remove passive voice that I missed in initial patch.

**This task is part of the Outreach Program for Women**

Change-Id: Ie3594285987e9118958827d3b192190627f99638
Partial-Bug: #1374813
Merge "Removal of passive voice from ArchDesign Guide"