Improve README catalog (#52)

Author: rauhul

README.md

@@ -19,20 +19,19 @@ This repository is a set of demonstration projects of **Embedded Swift**. Embedd
 
 ## Catalog of Examples
 
-| Name | Platform | Description | Photo |
-| ---- | -------- | ----------- | ----- |
-| [stm32-blink](./stm32-blink) | STM32F746G-DISCO | Baremetal program that blinks an LED repeatedly. Does not use any vendor SDKs or external toolchains. | <img width="300" src="https://github.com/apple/swift-embedded-examples/assets/1186214/739e98fd-a438-4a64-a7aa-9dddee25034b"> |
-| [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://github.com/apple/swift-embedded-examples/assets/1186214/9e117d81-e808-493e-a20c-7284ea630f37"> |
-| [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://github.com/apple/swift-embedded-examples/assets/1186214/9c5d8f74-f8aa-4632-831e-212a3e35e75a"> |
-| [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://github.com/apple/swift-embedded-examples/assets/1186214/97d3c465-9a07-4b86-9654-0c2aaaa43b3d">|
-| [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://github.com/apple/swift-embedded-examples/assets/1186214/f2c45c18-f9a4-48b4-a941-1298ecc942cb"> |
-| [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://github.com/apple/swift-embedded-examples/assets/1186214/f2c45c18-f9a4-48b4-a941-1298ecc942cb"> |
-| [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"> |
-| [pico2-neopixel](./pico2-neopixel) | Raspberry Pi Pico2 | Drive a Neopixel LED using the RP2350 PIO. Does not use any vendor SDKs or external toolchains. | <img width="300" src="pico2-neopixel/assets/images/example.jpg"> |
-| [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://github.com/apple/swift-embedded-examples/assets/1186214/ae3ff153-dd33-4460-8a08-4eac442bf7b0"> |
-| [esp32-led-strip-sdk](./esp32-led-strip-sdk) | ESP32-C6-DevKitC-1 | Demonstrates how to integrate with ESP-IDF SDK and use Swift to control the LED strip library from the SDK. | <img width="300" src="https://github.com/apple/swift-embedded-examples/assets/1186214/15f8a3e0-953e-426d-ad2d-3902baf859be"> |
-| [esp32-led-blink-sdk](./esp32-led-blink-sdk) | ESP32-C6-Bug | Demonstrates how to integrate with ESP-IDF SDK and use Swift to control the standard LED from the SDK. | <img width="300" src="esp32-led-blink-sdk/assets/images/ledon.jpg"> |
-
+| Name | Platform | SDK | Description | Photo |
+| ---- | -------- | --- | ----------- | ----- |
+| [stm32-blink](./stm32-blink) | STM32F746G-DISCO | None | Blink an LED repeatedly. | <img width="300" src="https://github.com/apple/swift-embedded-examples/assets/1186214/739e98fd-a438-4a64-a7aa-9dddee25034b"> |
+| [stm32-lcd-logo](./stm32-lcd-logo) | STM32F746G-DISCO | None | Animate the Swift Logo on the built-in LCD. | <img width="300" src="https://github.com/apple/swift-embedded-examples/assets/1186214/9e117d81-e808-493e-a20c-7284ea630f37"> |
+| [stm32-neopixel](./stm32-neopixel) | STM32F746G-DISCO | None | Control NeoPixel LEDs using SPI. | <img width="300" src="https://github.com/apple/swift-embedded-examples/assets/1186214/9c5d8f74-f8aa-4632-831e-212a3e35e75a"> |
+| [stm32-uart-echo](./stm32-uart-echo) | STM32F746G-DISCO | None | Echo user input using UART. | <img width="300" src="https://github.com/apple/swift-embedded-examples/assets/1186214/97d3c465-9a07-4b86-9654-0c2aaaa43b3d">|
+| [pico-blink](./pico-blink) | Raspberry Pi Pico | None  | Blink an LED repeatedly. | <img width="300" src="https://github.com/apple/swift-embedded-examples/assets/1186214/f2c45c18-f9a4-48b4-a941-1298ecc942cb"> |
+| [pico-blink-sdk](./pico-blink-sdk) | Raspberry Pi Pico | Pico SDK | Blink an LED repeatedly with Swift & the Pico SDK. | <img width="300" src="https://github.com/apple/swift-embedded-examples/assets/1186214/f2c45c18-f9a4-48b4-a941-1298ecc942cb"> |
+| [pico-w-blink-sdk](./pico-w-blink-sdk) | Raspberry Pi Pico W | Pico SDK | Blink an LED to signal 'SOS' in Morse code repeatedly with Swift & the Pico SDK. | <img width="300" src="https://github.com/apple/swift-embedded-examples/assets/26223064/a4949a2e-1887-4325-8f5f-a681963c93d7"> |
+| [pico2-neopixel](./pico2-neopixel) | Raspberry Pi Pico2 | None | Control Neopixel LEDs using the RP2350 PIO. | <img width="300" src="pico2-neopixel/assets/images/example.jpg"> |
+| [nrfx-blink-sdk](./nrfx-blink-sdk) | nRF52840-DK | Zephyr SDK | Blink an LED repeatedly with Swift & Zephyr. | <img width="300" src="https://github.com/apple/swift-embedded-examples/assets/1186214/ae3ff153-dd33-4460-8a08-4eac442bf7b0"> |
+| [esp32-led-strip-sdk](./esp32-led-strip-sdk) | ESP32-C6-DevKitC-1 | ESP-IDF SDK | Control NeoPixel LEDs with Swift & the ESP-IDF. | <img width="300" src="https://github.com/apple/swift-embedded-examples/assets/1186214/15f8a3e0-953e-426d-ad2d-3902baf859be"> |
+| [esp32-led-blink-sdk](./esp32-led-blink-sdk) | ESP32-C6-Bug | ESP-IDF SDK | Blink an LED repeatedly with Swift & the ESP-IDF. | <img width="300" src="esp32-led-blink-sdk/assets/images/ledon.jpg"> |
 
 Note that the SDK integration examples (Pico SDK, Zephyr SDK, etc.) are not recommendations or endorsement, the same is true for build system choice (Make, CMake, SwiftPM, shell scripts). Embedded Swift aims to be versatile and to allow for integration into more existing SDKs and build systems, and the example projects are merely showing the possibilities.