Update GraphQL Community Boot starter URL

Notified about this new repository address on Gitter
https://gitter.im/spring-projects/spring-boot?at=5940e54ef31c8ced0c33f7f6

spring-boot-starters/README.adoc

@@ -112,8 +112,8 @@ do as they were designed before this was clarified.
 | http://projects.spring.io/spring-batch/[Spring Batch] (Advanced usage)
 | https://github.com/codecentric/spring-boot-starter-batch-web
 
-| https://github.com/oembedler/spring-graphql-common[Spring GraphQL] (GraphQL and GraphiQL)
-| https://github.com/oembedler/graphql-spring-boot
+| http://graphql.org/[GraphQL] with https://github.com/graphql-java/[GraphQL Java]
+| https://github.com/graphql-java/graphql-spring-boot
 
 | SSH Daemon
 | https://github.com/anand1st/sshd-shell-spring-boot