Update to reflex new arduino-pico core v1.4.0

Author: khoih-prog

README.md

@@ -431,7 +431,7 @@ theses files must be copied into the corresponding directory:
 
 #### 8.1 To use BOARD_NAME
 
- **To be able to automatically detect and display BOARD_NAME on Seeeduino SAMD (RASPBERRY_PI_PICO, ADAFRUIT_FEATHER_RP2040, GENERIC_RP2040, etc) boards**, you have to copy the file [RP2040 platform.txt](Packages_Patches/rp2040/hardware/rp2040/1.4.0) into rp2040 directory (~/.arduino15/packages/rp2040/hardware/rp2040/1.4.0). 
+ **To be able to automatically detect and display BOARD_NAME on RP2040-based boards (RASPBERRY_PI_PICO, ADAFRUIT_FEATHER_RP2040, GENERIC_RP2040, etc) boards**, you have to copy the file [RP2040 platform.txt](Packages_Patches/rp2040/hardware/rp2040/1.4.0) into rp2040 directory (~/.arduino15/packages/rp2040/hardware/rp2040/1.4.0). 
 
 Supposing the rp2040 core version is 1.4.0. This file must be copied into the directory: