text: Title: Add an example for how to easily consume JSON APIs
  Body: Need examples showcasing how to [send JSON requests](https://uplink.readthedocs.io/en/stable/user/quickstart.html#form-encoded-multipart-and-json-requests) and [consume JSON responses](https://uplink.readthedocs.io/en/stable/user/quickstart.html#handling-json-responses). Also, we should provide examples of [custom JSON (de)serialization](https://uplink.readthedocs.io/en/stable/user/serialization.html#custom-json-deserialization) using [`@loads`](https://uplink.readthedocs.io/en/stable/dev/converters.html#uplink.loads) and [`@dumps`](https://uplink.readthedocs.io/en/stable/dev/converters.html#uplink.dumps). 
  
  These examples should live in the [`examples`](https://github.com/prkumar/uplink/tree/master/examples) directory.