Create README

Author: luisdelarosa

README.md

@@ -0,0 +1,13 @@
+# led
+Small LED library for use with Swift on Raspberry Pi
+
+This makes it easier to use LEDs with Swift.
+
+Here is a small example that will turn on an LED that is connected to GPIO pin 17 on a Raspberry Pi 3.
+```
+let gpios = SwiftyGPIO.GPIOs(for:.RaspberryPi3)
+let led = LED(gpioPin: .P17, swiftyGPIOs: gpios)
+led.value = 1
+```
+
+See [**blink** aka Hello World for Swift on Raspberry Pi: Blink an LED](https://github.com/luisdelarosa/blink) for a full example.