Update index.html.js (graphql#610)

Author: frederikhors

site/code/index.html.js

@@ -121,8 +121,9 @@ Code that executes a hello world GraphQL query with \`graphql-clj\`:
 ### Go
 
   - [graphql-go](https://github.com/graphql-go/graphql): An implementation of GraphQL for Go / Golang.
+  - [graph-gophers/graphql-go](https://github.com/graph-gophers/graphql-go): An active implementation of GraphQL in Golang (was https://github.com/neelance/graphql-go).
+  - [GQLGen](https://github.com/99designs/gqlgen) - Go generate based graphql server library.
   - [graphql-relay-go](https://github.com/graphql-go/relay): A Go/Golang library to help construct a graphql-go server supporting react-relay.
-  - [neelance/graphql-go](https://github.com/neelance/graphql-go): An active implementation of GraphQL in Golang.
   - [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.