[keyboard] Adds more test coverage and fixes README install instructions

Signed-off-by: deadprogram <ron@hybridgroup.com>

platforms/keyboard/README.md

@@ -5,7 +5,7 @@ This module implements support for keyboard events, wrapping the `stty` utility.
 ## How to Install
 
 ```
-go get github.com/hybridgroup/gobot && go install github.com/hybridgroup/gobot/platforms/ardrone
+go get github.com/hybridgroup/gobot && go install github.com/hybridgroup/gobot/platforms/keyboard
 ```
 
 ## How to Use

platforms/keyboard/keyboard_test.go

@@ -0,0 +1,47 @@
+package keyboard
+
+import (
+	"testing"
+
+	"github.com/hybridgroup/gobot/gobottest"
+)
+
+func TestParseSpace(t *testing.T) {
+	gobottest.Assert(t, Parse(bytes{32, 0, 0}).Key, Spacebar)
+}
+
+func TestParseEscape(t *testing.T) {
+	gobottest.Assert(t, Parse(bytes{27, 0, 0}).Key, Escape)
+}
+
+func TestParseNotEscape(t *testing.T) {
+  gobottest.Refute(t, Parse(bytes{27, 91, 65}).Key, Escape)
+}
+
+func TestParseNumberKeys(t *testing.T) {
+	gobottest.Assert(t, Parse(bytes{48, 0, 0}).Key, 48)
+  gobottest.Assert(t, Parse(bytes{50, 0, 0}).Key, 50)
+  gobottest.Assert(t, Parse(bytes{57, 0, 0}).Key, 57)
+}
+
+func TestParseAlphaKeys(t *testing.T) {
+	gobottest.Assert(t, Parse(bytes{97, 0, 0}).Key, 97)
+  gobottest.Assert(t, Parse(bytes{101, 0, 0}).Key, 101)
+  gobottest.Assert(t, Parse(bytes{122, 0, 0}).Key, 122)
+}
+
+func TestParseNotAlphaKeys(t *testing.T) {
+  gobottest.Refute(t, Parse(bytes{132, 0, 0}).Key, 132)
+}
+
+func TestParseArrowKeys(t *testing.T) {
+	gobottest.Assert(t, Parse(bytes{27, 91, 65}).Key, 65)
+  gobottest.Assert(t, Parse(bytes{27, 91, 66}).Key, 66)
+  gobottest.Assert(t, Parse(bytes{27, 91, 67}).Key, 67)
+  gobottest.Assert(t, Parse(bytes{27, 91, 68}).Key, 68)
+}
+
+func TestParseNotArrowKeys(t *testing.T) {
+  gobottest.Refute(t, Parse(bytes{27, 91, 65}).Key, Escape)
+  gobottest.Refute(t, Parse(bytes{27, 91, 70}).Key, 70)
+}