Merge pull request graphql#575 from steveazz/patch-1

Add 99designs/gqlgen under GO

Author: orta

site/code/index.html.js

@@ -130,6 +130,7 @@ A full implementation of the GraphQL specification that aims to maintain externa
   - [graphql-relay-go](https://github.com/graphql-go/relay): A Go/Golang library to help construct a graphql-go server supporting react-relay.
   - [machinebox/graphql](https://github.com/machinebox/graphql): An elegant low-level HTTP client for GraphQL.
   - [samsarahq/thunder](https://github.com/samsarahq/thunder): A GraphQL implementation with easy schema building, live queries, and batching.
+  - [99designs/gqlgen](https://github.com/99designs/gqlgen): A schema first GraphQL server generation. 
   - [appointy/jaal](https://github.com/appointy/jaal): Develop spec compliant GraphQL servers in Go.
 
 ### Groovy