Update README.md

Windows works using Zadig to install the USB driver pyusb can talk to.

README.md

@@ -1,5 +1,4 @@
-PyFL593FL
-==========
+#PyFL593FL
 
 Python/PyUSB interface to the ![FL593FL](http://www.teamwavelength.com/products/product.php?part=154)  evaluation board for the TeamWavelength ![FL500](http://www.teamwavelength.com/products/product.php?part=147) laser diode driver.
 
@@ -9,19 +8,16 @@ src="https://github.com/wonkoderverstaendige/PyFL593FL/blob/master/docs/interfac
 alt="PyQt4 client screenshot"/>
 </p>
 
-While in principle cross-platform, libusb was not able to interact with the FL593FL on Windows after
-some initial testing. But that is likely the authors fault.
+USB communication is handled by PyUSB, which can operate with several backends, i.e. libusb-0.1, libusb-1.0 or OpenUSB. Any of these should do the job as the grimy details are thankfully hidden away.
 
+##Windows
 
-Installation
-==============
+To install the driver, use ![Zadig](http://zadig.akeo.ie/) and install a libusb-win32 driver as per instructions (For this exact model: vendor id: 0x1a45, product id: 0x2001). Very easy. Then install ![PyUSB](https://github.com/walac/pyusb) and done (assuming all the other requirements like PyQt are installed...).
 
-PyUSB can operate with several backends, i.e. libusb-0.1, libusb-1.0 or OpenUSB. Any of these
-should do the job as the grimy details are thankfully hidden away.
+##Linux
 
-libusb
-------
 
+###Libusb
 Installing on distributions using apt goes something along the lines of:
 
     $ sudo apt-get install libusb-dev
@@ -30,8 +26,7 @@ Or for specifically installing libusb-1.0 at the time of writing:
 
     $ sudo apt-get install libusb-1.0-0-dev
 
-PyUSB
------
+###PyUSB
 
 Many distributions pull the old 0.x branch when using their package manager, but the 1.0.0+ version of PyUSB is
 required. As the latter is a pure python library, installing from the github repo should work just fine:
@@ -41,8 +36,7 @@ required. As the latter is a pure python library, installing from the github rep
     $ python setup.py install
 
 
-Future
-======
+#Future
 
 Replace the current directly coupled Qt interface with a separate server, handling the USB interface, and a Qt based
 client. The two communicate via ZMQ.