Add Benjie to Aug WG (#1359)

Author: benjie

agendas/2023/08-Aug/03-wg-primary.md

@@ -104,6 +104,7 @@ hold additional secondary meetings later in the month.
 | Lee Byron (Host) | @leebyron     | GraphQL Foundation | San Francisco, CA, US |
 | Alex Reilly | @twof     | Pronto.ai | San Francisco, CA, US |
 | Calvin Cestari | @calvincestari | Apollo | Vancouver, BC, CA |
+| Benjie Gillam | @benjie | Graphile | Chandler's Ford, UK |
 
 
 ## Agenda