Added graphql-upload to the list of complementary tools

docs/complementary-tools.md

@@ -1,15 +1,17 @@
 # Integrations
-
 - [Integration with Relay](https://github.com/ivome/graphql-relay-php)
 - [Integration with Laravel 5](https://github.com/Folkloreatelier/laravel-graphql) + [Relay Helpers for Laravel](https://github.com/nuwave/laravel-graphql-relay)
 - [Symfony Bundle](https://github.com/overblog/GraphQLBundle) by Overblog
-- Define types with Doctrine ORM annotations ([for PHP7.1](https://github.com/Ecodev/graphql-doctrine), for [earlier PHP versions](https://github.com/rahuljayaraman/doctrine-graphql))
 - Out of the box integration with any PSR-7 compatible framework (like [Slim](http://slimframework.com) or [Zend Expressive](http://zendframework.github.io/zend-expressive/)) via [Standard Server](executing-queries.md/#using-server)
+
+# GraphQL PHP Tools
+- Define types with Doctrine ORM annotations ([for PHP7.1](https://github.com/Ecodev/graphql-doctrine), for [earlier PHP versions](https://github.com/rahuljayaraman/doctrine-graphql))
+- [DataLoader PHP](https://github.com/overblog/dataloader-php) - as a ready implementation for [deferred resolvers](data-fetching.md#solving-n1-problem)
 - [PSR 15 compliant middleware](https://github.com/phps-cans/psr7-middleware-graphql) for the Standard Server (experimental)
+- [GraphQL Uploads](https://github.com/Ecodev/graphql-upload) for the Standard Server
 
-# Tools
+# General GraphQL Tools
 - [GraphiQL](https://github.com/graphql/graphiql) - An in-browser IDE for exploring GraphQL
 - [ChromeiQL](https://chrome.google.com/webstore/detail/chromeiql/fkkiamalmpiidkljmicmjfbieiclmeij)
   or [GraphiQL Feen](https://chrome.google.com/webstore/detail/graphiql-feen/mcbfdonlkfpbfdpimkjilhdneikhfklp) -
-  GraphiQL as Google Chrome extension
-- [DataLoader PHP](https://github.com/overblog/dataloader-php) - as a ready implementation for [deferred resolvers](data-fetching.md#solving-n1-problem)
+  GraphiQL as Google Chrome extension