Meeting 9 schedule, and call for agenda items

See the issue ticket for details about the schedule and agenda: https://github.com/w3c/font-text-cg/issues/48

• The meeting has been scheduled for 20:30–22:00 UTC on Tuesday 9 March 2021.
• The Zoom meeting room’s URL is available in the issue ticket.
• Feel free to propose agenda items in the issue ticket.

The minutes of Meeting 8 will be drafted and shared before Meeting 9.