boards: fix info for the thing plus rp2040

    fixes #263

Author: oflebbe

content/docs/reference/microcontrollers/thingplus-rp2040.md

@@ -6,9 +6,8 @@ weight: 3
 The [Sparkfun Thing Plus RP2040](https://www.sparkfun.com/products/17745) is a tiny development board based on the Raspberry Pi [RP2040](https://datasheets.raspberrypi.org/rp2040/rp2040-datasheet.pdf) microcontroller. 
 
 Peripherals: 
-- NINA-W102 chip with [wifinina](https://github.com/tinygo-org/drivers/tree/release/wifinina) firmware (wifi and bluetooth)
-- [lsm6dox](https://github.com/tinygo-org/drivers/tree/release/lsm6dox) IMU chip (acceleration, rotation and temperature)
-- microphone
+- ws2812 Neopixel
+- sdcard
 
 ## Interfaces
 
@@ -23,30 +22,32 @@ Peripherals:
 
 ## Machine Package Docs
 
-[Documentation for the machine package for the Nano RP2040](../machine/nano-rp2040)
+[Documentation for the machine package for the Sparkfun Thing Plus RP2040](../machine/thingplus-rp2040)
 
 ## Flashing
 
 ### UF2
 
-The Nano RP2040 comes with the [UF2 bootloader](https://github.com/Microsoft/uf2) already installed.
+The Sparkfun Thing Plus RP2040 comes with the [UF2 bootloader](https://github.com/Microsoft/uf2) already installed.
 
 ### CLI Flashing
 
-- Plug your Nano RP2040 into your computer's USB port while shorting the pins REC and GND with a jumper wire.
-- Once plugged in, remove the jumper pin.
+- Plug your Thing Plus RP2040 into your computer's USB port while pressing the BOOT button
+- Release BOOT Button
 - Flash your TinyGo program to the board using this command:
 
     ```shell
-    tinygo flash -target=nano-rp2040 [PATH TO YOUR PROGRAM]
+    tinygo flash -target=thingplus-rp2040 [PATH TO YOUR PROGRAM]
     ```
 
-- The Nano RP2040 board should restart and run your program.
+- The Thing Plus RP2040 board should restart and run your program.
 
 ### Troubleshooting
 
 Any troubleshooting tips go here.
 
 ## Notes
 
-You cannot yet use the USB port to the Nano RP2040 as a serial port. Instead `UART0` refers to the TX/RX pins on the board itself.
+You cannot yet use the USB port to the Thing Plus RP2040 as a serial port. Instead `UART0` refers to the TX/RX pins on the board itself.
+
+The Neopixel LED and the SD Card are supported by [tinygo drivers](https://github.com/tinygo-org/drivers)