docs: add graphql-loader (#92)

Author: stephen

README.md

@@ -100,6 +100,7 @@ Inspired by the [awesome](https://github.com/sindresorhus/awesome) list. Feel fr
 - [wasm loader](https://github.com/ballercat/wasm-loader): wasm binary loader module for Webpack. -- *Maintainer*: `Arthur Buldauskas` [![Github][githubicon]](https://github.com/wasm-loader)
 - [Imagemin Loader/Plugin](https://github.com/itgalaxy/imagemin-webpack): Image minimizing loader + plugin for webpack. -- *Maintainer*: `itgalaxy inc.` [![Github][githubicon]](https://github.com/itgalaxy)
 - [Bin Exec Loader](https://github.com/milewski/bin-exec-loader): Pipe any file through any binary. -- *Maintainer*: `Rafael Milewski` [![Github][githubicon]](https://github.com/milewski)
+- [GraphQL Loader](https://github.com/stephen/graphql-loader): `.graphql` document loader. -- *Maintainer*: `Stephen Wan` [![Github][githubicon]](https://github.com/stephen)
 
 #### Component & Template