Correct link to graphql-ruby

Author: nettofarah

README.md

@@ -1,7 +1,7 @@
 # GraphQL::QueryResolver
 [![Build Status](https://travis-ci.org/nettofarah/graphql-query-resolver.svg?branch=master)](https://travis-ci.org/nettofarah/graphql-query-resolver)
 
-GraphQL::QueryResolver is an add-on to [graphql-ruby](https://github.com/rmosologo/graphql-ruby)
+GraphQL::QueryResolver is an add-on to [graphql-ruby](https://github.com/rmosolgo/graphql-ruby)
 that allows your field resolvers to minimize N+1 SELECTS issued by ActiveRecord.
 
 GraphQL::QueryResolver will analyze the AST from incoming GraphQL queries and