Merge pull request graphql#761 from aklish/addElide

Added Elide as a service implementation

Author: caniszczyk

site/code/index.html.js

@@ -633,6 +633,7 @@ Executor.execute(schema, query) map println
   - [Prisma](https://www.prisma.io) ([github](https://github.com/prisma)): A BaaS (Backend as a Service) providing a GraphQL backend for your applications with a powerful web ui for managing your database and stored data.
   - [Tipe](https://tipe.io) ([github](https://github.com/tipeio)): A SaaS (Software as a Service) content management system that allows you to create your content with powerful editing tools and access it from anywhere with a GraphQL or REST API.
   - [AWS AppSync](https://aws.amazon.com/appsync/): Fully managed GraphQL service with realtime subscriptions, offline programming & synchronization, and enterprise security features as well as fine grained authorization controls.
+  - [Elide](https://elide.io): A Java library that can expose a JPA annotated data model as a GraphQL service over any relational database. 
   - [Hasura](https://hasura.io) ([github](https://github.com/hasura)): Hasura connects to your databases & microservices and instantly gives you a production-ready GraphQL API.
   - [FaunaDB](https://docs.fauna.com/fauna/current/graphql): Create an instant GraphQL backend by importing a gql schema. The database will create relations and indexes for you, so you'll be ready to query in seconds, without writing any database code. Serverless pricing, free to get started.