doc upd

Author: michele

README.md

@@ -1,5 +1,14 @@
 # arangodb-graphql-java
 
+The [GraphQL Java](https://www.graphql-java.com/documentation/) project is a
+Java implementation of [GraphQL](https://github.com/graphql/graphql-spec). A
+general
+[tutorial](https://www.graphql-java.com/tutorials/getting-started-with-spring-boot/)
+is available for GraphQL Java and Spring Boot.
+
+This project adds support for [ArangoDB](https://www.arangodb.com) to GraphQL Java.
+
+
 ## maven dependency
 
 ```xml