Add entry for "edge"

[julian-cable]

Add the entry for "edge" from the corporate style guide:

https://docs.google.com/document/d/1UI2wHjF-9uPEo7Dnt-nugQXuIMQUgTQv_QOUXL1x8zE/edit?tab=t.0#bookmark=id.cy6ju3a8nsw7