improved

Migrated Fusion API and GraphQL documentation

We've migrated the documentation guides and endpoint references for both Fusion API and GraphQL to https://docs.developer.yelp.com/.

The Fusion API guides are available at https://docs.developer.yelp.com/docs/fusion-intro.

The GraphQL guides are available at https://docs.developer.yelp.com/docs/graphql-intro.

The GraphQL Console is available at https://docs.developer.yelp.com/graphql.

Endpoint references are available at