Fix missing devices definition and add some descriptive comments

Author: lornajane

examples/client2/client2.go

@@ -9,29 +9,36 @@ import (
 	"github.com/magicmonkey/go-streamdeck/actionhandlers"
 	"github.com/magicmonkey/go-streamdeck/buttons"
 	"github.com/magicmonkey/go-streamdeck/decorators"
+	_ "github.com/magicmonkey/go-streamdeck/devices"
 )
 
 func main() {
+	// store the currently selected button
 	var current int
 
+	// initialise the streamdeck
 	sd, err := streamdeck.New()
 	if err != nil {
 		panic(err)
 	}
 
+	// put a number onto each button
 	btns := make([]*buttons.TextButton, 32)
 	for i := 0; i < 32; i++ {
 		btns[i] = buttons.NewTextButton(strconv.Itoa(i))
 		sd.AddButton(i, btns[i])
 	}
 
+	// create some decorators for later use
 	greenBorder := decorators.NewBorder(10, color.RGBA{0, 255, 0, 255})
-
 	redBorder := decorators.NewBorder(5, color.RGBA{255, 0, 0, 255})
+
+	// add red borders to all buttons
 	for i := 0; i < 32; i++ {
 		sd.SetDecorator(i, redBorder)
 	}
 
+	// add action handlers as an inline function
 	for i := 0; i < 32; i++ {
 		h := actionhandlers.NewCustomAction(func(btn streamdeck.Button) {
 			sd.SetDecorator(current, redBorder)
@@ -41,8 +48,8 @@ func main() {
 		btns[i].SetActionHandler(h)
 	}
 
+	// don't end the program, keep running
 	var wg sync.WaitGroup
 	wg.Add(1)
 	wg.Wait()
-
 }