message: Fix broken links to framework examples in README
diff: @@ -103,9 +103,9 @@ We have a full example for each of the frameworks below:
  - **Express:** See [packages/graphql-playground-middleware-express/examples/basic](https://github.com/graphcool/graphql-playground/tree/master/packages/graphql-playground-middleware-express/examples/basic)
  -- **Hapi:** See [packages/graphql-playground-middleware/examples/hapi](https://github.com/graphcool/graphql-playground/tree/master/packages/graphql-playground-middleware/examples/hapi)
  +- **Hapi:** See [packages/graphql-playground-middleware-hapi](https://github.com/graphcool/graphql-playground/tree/master/packages/graphql-playground-middleware-hapi)
  -- **Koa:** See [packages/graphql-playground-middleware/examples/koa](https://github.com/graphcool/graphql-playground/tree/master/packages/graphql-playground-middleware/examples/koa)
  +- **Koa:** See [packages/graphql-playground-middleware-koa](https://github.com/graphcool/graphql-playground/tree/master/packages/graphql-playground-middleware-koa)
  - **Lambda (as serverless handler):** See [serverless-graphql-apollo](https://github.com/serverless/serverless-graphql-apollo) or a quick example below.
  