Add myself and agenda item (#414)

Co-authored-by: Lee Byron <[email protected]>

Author: eapache

agendas/2020-06-04.md

@@ -29,6 +29,7 @@ agenda, edit this file.*
 | ------------------------ | ------------------------ | ------------------------
 | Lee Byron                | GraphQL Foundation       | San Francisco, CA, US
 | Benjie Gillam            | Graphile                 | Southampton, UK
+| Evan Huus                | Shopify                  | Ottawa, ON, CA
 | *ADD YOUR NAME ABOVE TO ATTEND*
 
 
@@ -59,4 +60,5 @@ Example agenda item:
 1. Review agenda (2m, Lee)
 1. Review previous meeting's action items (5m, Lee)
    - [Currently open action items](https://github.com/graphql/graphql-wg/issues?q=is%3Aissue+is%3Aopen+label%3A%22Action+item+%3Aclapper%3A%22)
+1. GraphQL Scalars hosting and coordination: https://www.graphql-scalars.com/ (10m, Evan and Andi)
 1. *ADD YOUR AGENDA ABOVE*