Update old link in Blogs. (graphql#597)

Update one of the old link in Blogs to be the correct one

Author: shawnkoon

site/community/Community-Resources.md

@@ -57,7 +57,7 @@ Here are a list of notable blog posts to help you better understand GraphQL:
 - [GraphQL Concepts Visualized](https://medium.com/apollo-stack/the-concepts-of-graphql-bc68bd819be3#.hfczgtdsj) - Dhaivat Pandya
 - [Building the f8 App: Using GraphQL & Relay](http://makeitopen.com/docs/en/1-A2-relay.html)
 - [Your First GraphQL Server](https://medium.com/the-graphqlhub/your-first-graphql-server-3c766ab4f0a2#.ovn0y19k4) - Clay Allsopp
-- [Tutorial: Kick start a JS API with Apollo-server, Dataloader and Knex](https://bamtech.gitbooks.io/dev-standards/content/backend/graphql-js/getting-started-with-apollo-server-dataloader-knex.mo.html) - Thomas Pucci
+- [Tutorial: Kick start a JS API with Apollo-server, Dataloader and Knex](https://bamtech.gitbook.io/dev-standards/backend/graphql-js/getting-started-with-apollo-server-dataloader-knex.mo) - Thomas Pucci
 - [Tutorial: How to Build a GraphQL Server](https://medium.com/apollo-stack/tutorial-building-a-graphql-server-cddaa023c035#.bu6sdnst4) - Jonas Helfer
 - [Designing Powerful APIs with GraphQL Query Parameters](https://www.graph.cool/docs/tutorials/designing-powerful-apis-with-graphql-query-parameters-aing7uech3/) - Johannes Schickling
 - [GraphQL and the amazing Apollo Client](https://medium.com/google-developer-experts/graphql-and-the-amazing-apollo-client-fe57e162a70c) - Gerard Sans