Update README.md

Author: hedselu

README.md

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 ![](https://badge.fury.io/rb/shared-arguments.svg)
 [![Build Status](https://travis-ci.org/hedselu/shared-arguments.svg?branch=master)](https://travis-ci.org/hedselu/shared-arguments)
 ![](http://ruby-gem-downloads-badge.herokuapp.com/shared-arguments)
-Ruby gem for GraphQL arguments sharing within fields
+<br>
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+This gem allows share arguments within GraphQL fields for [graphql-ruby](https://github.com/rmosolgo/graphql-ruby).
 
 **Sponsored by**
 <br>