Update README.md

Author: Charly POLY

README.md

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 GraphQL schema for Spotify Web API — TypeScript / Node.js (v6)
 
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-**[Try with the interactive console !](http://spotify.thefrench.house/graphql-console/)**
+**[Try with the interactive console !](https://spotify-api-graphql-console.herokuapp.com/)**
 
 See [spotify-graphql-examples](https://github.com/thefrenchhouse/spotify-graphql-examples) for more examples