Update README to include Relay link

Author: benjie

README.md

@@ -1,6 +1,6 @@
 # Relay Library for GraphQL.js
 
-This is a library to allow the easy creation of Relay-compliant servers using the [GraphQL.js](https://github.com/graphql/graphql-js) reference implementation of a GraphQL server.
+This is a library to allow the easy creation of [Relay](https://relay.dev/)-compliant servers using the [GraphQL.js](https://github.com/graphql/graphql-js) reference implementation of a GraphQL server.
 
 [![Build Status](https://github.com/graphql/graphql-relay-js/workflows/CI/badge.svg?branch=main)](https://github.com/graphql/graphql-relay-js/actions?query=branch%3Amain)
 [![Coverage Status](https://codecov.io/gh/graphql/graphql-relay-js/branch/master/graph/badge.svg)](https://codecov.io/gh/graphql/graphql-relay-js)