Correct the list of platform examples for the pico-blink to specify non 'W' boards (swiftlang#15)

Author: phausler

README.md

@@ -25,7 +25,7 @@ This repository is a set of demonstration projects of **Embedded Swift**. Embedd
 | [stm32-lcd-logo](./stm32-lcd-logo) | STM32F746G-DISCO | Sets up layers on the built-in LCD and animates them in a loop. Does not use any vendor SDKs or external toolchains. | <img width="300" src="https://raw.githubusercontent.com/kubamracek/swift-evolution/branch/assets/stm32-lcd-logo.jpg"> |
 | [stm32-neopixel](./stm32-neopixel) | STM32F746G-DISCO | Uses SPI to program a NeoPixel LED strip. Does not use any vendor SDKs or external toolchains. | <img width="300" src="https://raw.githubusercontent.com/kubamracek/swift-evolution/branch/assets/stm32-led.jpg"> |
 | [stm32-uart-echo](./stm32-uart-echo) | STM32F746G-DISCO | Uses UART to implement a simple "echo" firmware. Does not use any vendor SDKs or external toolchains. | <img width="300" src="https://raw.githubusercontent.com/kubamracek/swift-evolution/branch/assets/stm32-uart-echo.png">|
-| [pico-blink](./pico-blink) | Raspberry Pi Pico W | Baremetal program that blinks an LED repeatedly. Does not use any vendor SDKs or external toolchains. | <img width="300" src="https://raw.githubusercontent.com/kubamracek/swift-evolution/branch/assets/pico-blink.jpg"> |
+| [pico-blink](./pico-blink) | Raspberry Pi Pico | Baremetal program that blinks an LED repeatedly. Does not use any vendor SDKs or external toolchains. | <img width="300" src="https://raw.githubusercontent.com/kubamracek/swift-evolution/branch/assets/pico-blink.jpg"> |
 | [pico-blink-sdk](./pico-blink-sdk) | Raspberry Pi Pico | Baremetal program that blinks an LED repeatedly. Demonstrates how to use code and libraries from the Pico SDK and add Swift code on top of it. | <img width="300" src="https://raw.githubusercontent.com/kubamracek/swift-evolution/branch/assets/pico-blink-sdl.jpg"> |
 | [pico-w-blink-sdk](./pico-w-blink-sdk) | Raspberry Pi Pico W | Baremetal program that blinks an LED to signal 'SOS' in Morse code. Demonstrates how to use code and libraries from the Pico SDK and add Swift code on top of it. | <img width="300" src="https://github.com/apple/swift-embedded-examples/assets/26223064/a4949a2e-1887-4325-8f5f-a681963c93d7"> |
 | [nrfx-blink-sdk](./nrfx-blink-sdk) | nRF52840-DK | Baremetal program that blinks an LED repeatedly. Demonstrates how to use code and libraries from the Zephyr SDK and add Swift code on top of it. | <img width="300" src="https://raw.githubusercontent.com/kubamracek/swift-evolution/branch/assets/nrfx-blink-sdk.jpeg"> |