Add empty composite types to 2019-10-10 agenda (#263)

Also adds Victor A to attendees list (author of the [RFC](graphql/graphql-spec#606))

Author: Victor Andrée

agendas/2019-10-10.md

@@ -44,6 +44,7 @@ James Baxley         | Apollo              | Piedmont, SC
 Jesse Rosenberger    | Apollo              | Helsinki, FI
 Ashi Krishnan        | Apollo              | Brooklyn, NY
 Mike Marcacci        | Marcacci Labs       | Woodside, CA
+Victor Andrée        | Advinans            | Stockholm, Sweden
 Tanay Pratap         | Microsoft           | Bengaluru, India
 *ADD YOUR NAME HERE* | *COMPANY / ORG*     | *WHERE YOU ARE*
 
@@ -61,5 +62,6 @@ Tanay Pratap         | Microsoft           | Bengaluru, India
 1. Lexer lookaheads stage 3 approval (Lee, 10m) [RFC 1](https://github.com/graphql/graphql-spec/pull/599) [RFC 2](https://github.com/graphql/graphql-spec/pull/601)
 1. Spec cut date discussion (#261)
 1. Review [Input Union RFC](https://github.com/graphql/graphql-spec/blob/master/rfcs/InputUnion.md) and discuss the next steps (30m, Vince)
+1. Empty composite types (Victor, 10m) [RFC](https://github.com/graphql/graphql-spec/pull/606)
 1. Review design for the code page for [graphql.org](https://github.com/graphql/graphql.github.io/issues/768) (5m)
 1. *ADD YOUR AGENDA ITEM ABOVE HERE*