Update README.md

README.md

@@ -1,2 +1,21 @@
 # LoRaWAN
 This is a LoRaWAN implementation in python.
+
+## Installation
+Just git clone to your python source directory where you want to use this module.
+
+## Example
+```
+#!/usr/bin/env python2.7
+import LoRaWAN
+
+nwkskey = [0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, 0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c]
+packet = [0x80,0x8f,0x77,0xbb,0x07,0x00,0x02,0x00,0x06,0xbd,0x33,0x42,0xa1,0x9f,0xcc,0x3c,0x8d,0x6b,0xcb,0x5f,0xdb,0x05,0x48,0xdb,0x4d,0xc8,0x50,0x14,0xae,0xeb,0xfe,0x0b,0x54,0xb1,0xc9,0x98,0xde,0xf5,0x3e,0x97,0x9b,0x70,0x1d,0xab,0xb0,0x45,0x30,0x0e,0xf8,0x69,0x9c,0x38,0xfc,0x1a,0x34,0xd5]
+
+lorawan = LoRaWAN.new(packet)
+print lorawan.get_mtype()
+print lorawan.get_mversion()
+print map(hex, lorawan.get_mic())
+print map(hex, bytearray(lorawan.compute_mic(nwkskey)))
+print bytearray(lorawan.decrypt_payload(nwkskey))
+```