Text updates to the Oniro project website

There are some minor updates required for the Oniro website. This document details the pages and the sections of text to be replaced: https://docs.google.com/document/d/1rdtprl-Jm7Vnlc4GIJEzS7JDyDkzaMUanfBYNx0_Nok/edit#

Let me know of any questions or clarifications needed. Thanks!