HS Physics: Change "Glossary" to "Key Terms"

[openstaxalina]

What happened?

Environment:

• Book(s): HS Physics
• URL/Server: https://content04.cnx.org/contents/IKZFuFtg:mdsCq8U- (Note: content will be moved to katalyst01.cnx.org)
• Location (page number, chapter/section): any end of chapter
• Suggested nearby searchable text: Glossary
• Browser: Chrome

Screenshots

[openstaxalina]

Issue moved to openstax/cnx-recipes #1680 via ZenHub