Adjust link of assets

Author: sebromero

docs/README.md

@@ -221,19 +221,19 @@ To simplify things, we have added a convenience function in `Board` called `slee
 Here's an overview of the reduction in power usage that you can expect from this library on the Portenta C33. The screenshots below are taken from the nRF Power Profiler application using a Nordic PPK2 while running the blink sketch on the same board. 
 
 #### Without power optimisations
-![](https://raw.githubusercontent.com/arduino-libraries/Arduino_Portenta_C33_LowPower/main/extras/results/normal_usage_blink.png)
+![](https://raw.githubusercontent.com/arduino-libraries/Arduino_Portenta_C33_LowPower/main/docs/assets/normal_usage_blink.png)
 
 #### Sleep (ADC, RGB LED, Secure Element, Wifi and Bluetooth off)
-![](https://raw.githubusercontent.com/arduino-libraries/Arduino_Portenta_C33_LowPower/main/extras/results/sleep_no_peripherals.png)
+![](https://raw.githubusercontent.com/arduino-libraries/Arduino_Portenta_C33_LowPower/main/docs/assets/sleep_no_peripherals.png)
 
 #### Deep Sleep (ADC, RGB LED, Secure Element, Wifi and Bluetooth off)
-![](https://raw.githubusercontent.com/arduino-libraries/Arduino_Portenta_C33_LowPower/main/extras/results/deep_sleep_no_peripherals.png)
+![](https://raw.githubusercontent.com/arduino-libraries/Arduino_Portenta_C33_LowPower/main/docs/assets/deep_sleep_no_peripherals.png)
 
 #### Sleep (ADC, RGB LED, Secure Element, Wifi and Bluetooth on)
-![](https://raw.githubusercontent.com/arduino-libraries/Arduino_Portenta_C33_LowPower/main/extras/results/sleep_peripherals_on.png)
+![](https://raw.githubusercontent.com/arduino-libraries/Arduino_Portenta_C33_LowPower/main/docs/assets/sleep_peripherals_on.png)
 
 #### Deep Sleep (ADC, RGB LED, Secure Element, Wifi and Bluetooth on)
-![](https://raw.githubusercontent.com/arduino-libraries/Arduino_Portenta_C33_LowPower/main/extras/results/deep_sleep_peripherals_on.png)
+![](https://raw.githubusercontent.com/arduino-libraries/Arduino_Portenta_C33_LowPower/main/docs/assets/deep_sleep_peripherals_on.png)