Merge pull request graphql#827 from Urigo/patch-1

Add popular, open source GraphQL tools

Author: orta

site/code/index.html.js

@@ -681,6 +681,13 @@ Executor.execute(schema, query) map println
   - [libgraphqlparser](https://github.com/graphql/libgraphqlparser): A GraphQL query language parser in C++ with C and C++ APIs.
   - [Graphql Language Service](https://github.com/graphql/graphql-language-service): An interface for building GraphQL language services for IDEs (diagnostics, autocomplete etc).
   - [quicktype](https://quicktype.io) ([github](https://github.com/quicktype/quicktype)): Generate types for GraphQL queries in TypeScript, Swift, golang, C#, C++, and more.
+  - [GraphQL Code Generator](https://graphql-code-generator.com): GraphQL code generator with flexible support for custom plugins and templates like Typescript (frontend and backend), React Hooks, resolvers signatures and more.
+  - [GraphQL Inspector](https://github.com/kamilkisiela/graphql-inspector): Compare schemas, validate documents, find breaking changes, find similar types, schema coverage, and more.
+  - [GraphQL Config](https://github.com/kamilkisiela/graphql-config): One configuration for all your GraphQL tools (supported by most tools, editors & IDEs).
+  - [GraphQL CLI](https://github.com/urigo/graphql-cli): A command line tool for common GraphQL development workflows.
+  - [GraphQL Scalars](https://github.com/Urigo/graphql-scalars): A library of custom GraphQL scalar types for creating precise, type-safe GraphQL schemas.
+  - [GraphQL Toolkit](https://github.com/ardatan/graphql-toolkit): A set of utils for faster development of GraphQL tools (Schema and documents loading, Schema merging and more).
+  - [SOFA](https://github.com/Urigo/sofa): Generate REST API from your GraphQL API.
 
 ## Services