fix dead link

Author: Jerzeek

_board/studiolab_picoexpander.md

@@ -32,9 +32,11 @@ The Pico Expander is an expansion board that features a soldered Raspberry Pi Pi
 - **Reset Pin**: Dedicated reset functionality for convenient board resets
 - **I2C Qwiic Connector**: Native I2C support for connecting Qwiic-compatible sensors and devices
 
-The Pico Expander retains all the performance benefits of the Pico 2W—double the processing power, RAM, and flash memory compared to the original Pico—while providing a developer-friendly interface for rapid prototyping. Whether you're building IoT projects, sensor networks, or interactive applications, the Pico Expander simplifies hardware integration and accelerates development in CircuitPython or MicroPython.
+The Pico Expander retains all the performance benefits of the Pico 2W—double the processing power, RAM, and flash memory compared to the original Pico—while providing a developer-friendly interface for rapid prototyping. Whether you're building IoT projects, sensor networks, or interactive applications, the Pico Expander simplifies hardware integration and accelerates development in CircuitPython or MicroPython.  
+
 ## Upgrade
-* [Page to upgrade your CP on the PicoExpander](https://id-studiolab.github.io/Connected-Interaction-Kit/test/support/upgradeCP_PICO)
+* [Upgrade your CP version on the PicoExpander](https://id-studiolab.github.io/Connected-Interaction-Kit/support/upgradeCP_PICO)  
+  
 ## Tutorial
 * [Connected Interaction Kit Getting Started](https://id-studiolab.github.io/Connected-Interaction-Kit/)