OCWG's edits for the About/Glossary page

[rroberge]

Thu, the edits are included in this folder: https://communityshare.mitre.org/sites/DHS_Cybersecurity/CVE/CVE%20Operations/New%20CVE%20Website/2.%20Final%20Files%20for%20Thu

[alinh-mitre]

Completed by pull request #210