add graphqurl to javascript clients

Author: praveenweb

site/code/index.html.js

@@ -564,6 +564,7 @@ Executor.execute(schema, query) map println
   - [AWS Amplify](https://aws.github.io/aws-amplify): A JavaScript library for application development using cloud services, which supports GraphQL backend and React components for working with GraphQL data.
   - [Grafoo](https://github.com/grafoojs/grafoo): An all purpose GraphQL client with view layer integrations for multiple frameworks in just 1.6kb.
   - [urql](https://formidable.com/open-source/urql/) ([github](https://github.com/FormidableLabs/urql)): A highly customizable and versatile GraphQL client for React.
+  - [graphqurl](https://github.com/hasura/graphqurl) ([npm](https://www.npmjs.com/package/graphqurl)): curl for GraphQL with autocomplete, subscriptions and GraphiQL. Also a dead-simple universal javascript GraphQL client.
 
 ### Swift / Objective-C iOS