Update readme.

Author: shirriff

readme

@@ -1,13 +1,14 @@
 This is the IRremote library for the Arduino.
 
-To install, move this directory to:
-arduino-00nn/hardware/libraries/IRremote
+To install on Arduino 0018 or later, move this directory to:
+arduino-00nn/libraries/IRremote
+For earlier releases, install into arduino-00nn/hardware/libraries/IRremote
 
 I.e. after installation you should have files such as:
 arduino-00nn/hardware/libraries/IRremote/IRremote.cpp
 
-If you're downloading from github (http://github.com/shirriff/Arduino-IRremote), click on the Download Source button in the upper right and get a zip file. Unzip it, and move the directory as described above.
+If you're downloading from github (http://github.com/shirriff/Arduino-IRremote), click on the Download Source button in the upper right and get a zip file. Unzip it, copy and rename the directory shirriff-Arduino-IRremote-nnn to arduino-00nn/libraries/IRremote. Your directory structure should have arduino-00nn/libraries/IRremote/IRremote.cpp, etc.
 
 For details see http://arcfn.com/2009/08/multi-protocol-infrared-remote-library.html
 
-Copyright 2009 Ken Shirriff
+Copyright 2009-2010 Ken Shirriff