Update README.md

Author: dav-mac

README.md

@@ -2,7 +2,7 @@
 
 ## Important
 ### To download the latest stable version, please click below instead of using the "Download ZIP" button.
-### [Click here to download](https://github.com/arm-university/Robotics-and-IoT-for-microbit/archive/refs/heads/main.zip)
+### [Click here to download](https://github.com/arm-university/Robotics-and-IoT-for-microbit/releases/download/v2.0.0/Robotics-and-IoT-for-microbit-main.zip)
 
 Take a journey of learning through the "Internet of Things" and Robotics. Learners apply Arm-based technology to solve interesting and authentic problems, using micro:bits and other exciting peripherals to create autonomous cars and smart cities.