Docs: mentions the need to run Zadig on Windows

Author: josuah

Docs/getting_started.md

@@ -14,6 +14,7 @@ You might want to [update your firmware](https://github.com/tinyvision-ai-inc/pi
 
 - Program a custom firmware onto the RP2040: [Programming the MCU](/programming_the_mcu.html).
 
+
 ## Quick-start with APIO
 
 The [APIO](https://github.com/FPGAwars/apio) project is a command line tool to fetch and use
@@ -22,6 +23,10 @@ on [Yosys](https://github.com/YosysHQ/).
 
 It will bring an up-to-date build environment running quickly.
 
+On Windows, you will first need to setup the `libusbK` driver for `pico-ice DFU (CRAM)`
+[with Zadig](https://zadig.akeo.ie/) or [with UsbDriverTool](https://visualgdb.com/UsbDriverTool/)
+([doc](https://github.com/FPGAwars/apio/wiki/Quick-start)).
+
 ```
 # Download the latest APIO dev version (with pico-ice support):
 pip3 install git+https://github.com/FPGAwars/apio
@@ -43,6 +48,7 @@ apio build
 apio upload
 ```
 
+
 ## Default Firmware
 
 [source](https://github.com/tinyvision-ai-inc/pico-ice/blob/main/Firmware/pico-ice-default/) -