Add Jordan to Oct. 5, 2023 agenda (#1395)

Author: captbaritone

agendas/2023/10-Oct/05-wg-primary.md

@@ -103,6 +103,7 @@ hold additional secondary meetings later in the month.
 | :--------------- | :------------- | :----------------- | :-------------------- |
 | Lee Byron (Host) | @leebyron      | GraphQL Foundation | San Francisco, CA, US |
 | Robert Balicki   | @statisticsftw | Pinterest          | New York, NY, US      |
+| Jordan Eldredge  | @captbaritone  | Meta (Relay)       | San Francisco, CA, US |
 
 ## Agenda
 
@@ -121,3 +122,5 @@ hold additional secondary meetings later in the month.
    - [Ready for review](https://github.com/graphql/graphql-wg/issues?q=is%3Aissue+is%3Aopen+label%3A%22Ready+for+review+%F0%9F%99%8C%22+sort%3Aupdated-desc)
    - [All open action items (by last update)](https://github.com/graphql/graphql-wg/issues?q=is%3Aissue+is%3Aopen+label%3A%22Action+item+%3Aclapper%3A%22+sort%3Aupdated-desc)
    - [All open action items (by meeting)](https://github.com/graphql/graphql-wg/projects?query=is%3Aopen+sort%3Aname-asc)
+1. Client Controlled Nullability and True Nullability Schema (20m, Jordan)
+   - [True Nullability Schema](https://github.com/graphql/graphql-wg/discussions/1394)