docs: fix link to duckyscript docs

the github repo and related wiki no longer exist, so update the link to point at the official docs

Author: imnotjames

README.rst

@@ -25,7 +25,7 @@ CircuitPython library for running DuckyScript
 
 DuckyScript
 ============
-You can find the DuckyScript Documentation `here <https://github.com/hak5darren/USB-Rubber-Ducky/wiki/Duckyscript>`_
+You can find the DuckyScript Documentation `here <https://docs.hak5.org/hak5-usb-rubber-ducky/>`_
 
 Dependencies
 =============