Update README.md

uses go channels to pipe around events, for flexibility and multi-threading.

## Operation

## Using

make event channels from methods on HID type.  `HID.On<<event>>()`

basically, after some setup, you handle events on the channels returned by methods on the HID type. each specific to an event type;  `HID.On<<event type>>(<<index>>)`

also some higher-level event modifiers for common UI abstractions, to help standard usage.

the Capture() method automates this by returning a slice of channels for all the required events.

package also has some higher-level event modifiers for common UI abstractions, to help standardise advanced usage.

Overview/docs: [![GoDoc](https://godoc.org/github.com/splace/joysticks?status.svg)](https://godoc.org/github.com/splace/joysticks)

func main() {

	evts := Capture(

		Channel{1, HID.OnClose},  // chan index#0 set to receive button #1 closes events

		Channel{1, HID.OnClose},  // evts[0] set to receive button #1 closes events

	)

	<-evts[0]

}