Add Groovy gorm-graphql library and Grails Plugin

Author: sdelamo

site/code/index.html.js

@@ -122,8 +122,26 @@ Code that executes a hello world GraphQL query with \`graphql-clj\`:
   - [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.
 
+### Groovy 
+
+#### [gorm-graphql](https://github.com/grails/gorm-graphql/)
+
+**Core Library** The GORM GraphQL library provides functionality to generate a GraphQL schema based on your GORM entities. In addition to mapping domain classes to a GraphQL schema, the core library also provides default implementations of "data fetchers" to query, update, and delete data through executions of the schema.
+
+**Grails Plugin** In a addition to the Core Library, the GORM GraphQL Grails Plugin: 
+
+- Provides A controller to receive and respond to GraphQL requests through HTTP, based on their guidelines.
+- Generates the schema at startup with spring bean configuration to make it easy to extend.
+- Includes a [GraphiQL](https://github.com/graphql/graphiql) browser enabled by default in development. The browser is accessible at /graphql/browser.
+- Overrides the default data binder to use the data binding provided by Grails
+- Provides a [trait](https://grails.github.io/gorm-graphql/latest/api/org/grails/gorm/graphql/plugin/testing/GraphQLSpec.html) to make integration testing of your GraphQL endpoints easier
+
+See [the documentation](https://grails.github.io/gorm-graphql/latest/guide/index.html) for more information.
+
 ### Java
 
+
+
 #### [graphql-java](https://github.com/graphql-java/graphql-java)
 
 A Java library for building GraphQL APIs.