Add Cory Monty to 2019-06-06 + Dynamic variable declaration (#171)

* Add Cory Monty to 2019-06-06 + Pipeline Mutations

* Update 2019-06-06.md

* Update 2019-06-06.md

Author: cmonty

agendas/2019-06-06.md

@@ -30,6 +30,7 @@ to the list of attendees below along with your organization and location. Add an
 Name                 | Organization       | Location
 -------------------- | ------------------ | ----------------------
 Lee Byron            | GraphQL Foundation | Menlo Park, CA
+Cory Monty           | Braintree          | Chicago, IL
 Tanay Pratap         | Microsoft          | Bengaluru, India
 Evan Huus            | Shopify            | Ottawa, Canada
 Luke Korth           | Braintree          | Columbus, OH
@@ -50,4 +51,5 @@ James Baxley         | Apollo             | Greenville, SC
 1. Introduction of attendees
 1. Review agenda (5m)
 1. Determine volunteers for note taking (5m)
+1. Dynamic variable declaration [proposal](https://github.com/graphql/graphql-spec/issues/583) (30m)
 1. *ADD YOUR AGENDA ITEM ABOVE HERE*