Readme sample wrong

[jakub-bochenski]

Vertx vertx = Vertx.vertx();  // get Vertx instance

/* Create instance of your API */
IcecreamServiceApi icecreamApi = VertxFeign
    .builder()
    .vertx(vertx) // provide vertx instance
    .encoder(new JacksonEncoder())
    .decoder(new JacksonDecoder())
    .target(IcecreamServiceApi.class, "http://www.icecreame.com");
    
/* Execute requests asynchronously */
Future<Collection<Flavor>> flavorsFuture = icecreamApi.getAvailableFlavors();
Future<Collection<Mixin>> mixinsFuture = icecreamApi.getAvailableMixins();

There is no JacksonEncoder or JacksonDecoder in the package.