Fix URLs to the GraphQL Specification and its repository (#1959)

.github/CONTRIBUTING.md

@@ -4,7 +4,7 @@ Contributing to graphql-js
 We want to make contributing to this project as easy and transparent as
 possible. Hopefully this document makes the process for contributing clear and
 answers any questions you may have. If not, feel free to open an
-[Issue](https://github.com/facebook/graphql/issues).
+[Issue](https://github.com/graphql/graphql-spec/issues/).
 
 ## Issues
 
@@ -24,10 +24,10 @@ your [pull requests](https://help.github.com/articles/creating-a-pull-request).
 ### Considered Changes
 
 Since graphql-js is a reference implementation of the
-[GraphQL spec](https://facebook.github.io/graphql/), only changes which comply
+[GraphQL spec](https://graphql.github.io/graphql-spec/), only changes which comply
 with this spec will be considered. If you have a change in mind which requires a
 change to the spec, please first open an
-[issue](https://github.com/facebook/graphql/issues/) against the spec.
+[issue](https://github.com/graphql/graphql-spec/issues/) against the spec.
 
 ### Contributor License Agreement ("CLA")
 

.github/ISSUE_TEMPLATE.md

@@ -14,7 +14,7 @@ The best way to get a bug fixed is to provide a *pull request* with a simplified
 
 # Feature requests
 
-GraphQL.js is a reference implementation of the [GraphQL specification](https://github.com/facebook/graphql). To discuss new features which are not GraphQL.js specific and fundamentally change the way GraphQL works, open an issue against the specification.
+GraphQL.js is a reference implementation of the [GraphQL specification](https://github.com/graphql/graphql-spec). To discuss new features which are not GraphQL.js specific and fundamentally change the way GraphQL works, open an issue against the specification.
 
 # Security bugs
 

README.md

@@ -15,8 +15,8 @@ Looking for help? Find resources [from the community](https://graphql.org/commun
 ## Getting Started
 
 An overview of GraphQL in general is available in the
-[README](https://github.com/facebook/graphql/blob/master/README.md) for the
-[Specification for GraphQL](https://github.com/facebook/graphql). That overview
+[README](https://github.com/graphql/graphql-spec/blob/master/README.md) for the
+[Specification for GraphQL](https://github.com/graphql/graphql-spec). That overview
 describes a simple set of GraphQL examples that exist as [tests](src/__tests__)
 in this repository. A good way to get started with this repository is to walk
 through that README and the corresponding tests in parallel.