Clarify use of Relay.Store in GraphQLMutation
Summary:
I think it would be helpful to point out the most common use of this API.
Refers to the question in this issue:
Closes
@@ -96,6 +96,8 @@ const mutation = Relay.GraphQLMutation.create(
);
```
+Note: In most cases, it is possible to rely on the default singleton instance of the environment, which is exposed as `Relay.Store`.
+
See also: [GraphQLMutation > Constructor](#constructor)
### createWithFiles (static method)
