Update README

README

@@ -6,6 +6,11 @@ RasPiWrite is a simple and easily modifiable python script that automates the pr
 only compatiable with Mac OSX systems, mostly because currently Macs have no easy way of installing Raspberry Pi distros, however I will try and make the script universal for all 
 unix systems as soon as I can.
 
+Install:
+unzip: 'unzip RaspiWrite.zip'
+chmod +x raspiwrite.py
+sudo ./raspiwrite.py (or run as root)
+
 So...What can I do?
 RasPiWrite supports all the distros currently on the Official Raspberry Pi downloads page, the script will choose a mirror at random to help ease the pressure on the mirror 
 network.