Fix relay links.

Author: syrusakbary

docs/relay/index.rst

@@ -21,9 +21,9 @@ Useful links
 -  `Relay Cursor Connection Specification`_
 -  `Relay input Object Mutation`_
 
-.. _Relay: https://facebook.github.io/relay/docs/graphql-relay-specification.html
+.. _Relay: https://facebook.github.io/relay/docs/en/graphql-server-specification.html
 .. _Relay specification: https://facebook.github.io/relay/graphql/objectidentification.htm#sec-Node-root-field
-.. _Getting started with Relay: https://facebook.github.io/relay/docs/graphql-relay-specification.html
+.. _Getting started with Relay: https://facebook.github.io/relay/docs/en/quick-start-guide.html
 .. _Relay Global Identification Specification: https://facebook.github.io/relay/graphql/objectidentification.htm
 .. _Relay Cursor Connection Specification: https://facebook.github.io/relay/graphql/connections.htm
 .. _Relay input Object Mutation: https://facebook.github.io/relay/graphql/mutations.htm