Initial commit, based on pxt-adafruit

docs/about.md

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+# About
+
+Welcome to the **Microsoft MakeCode** editor for the **@boardname@**!
+
+## Programming: [Blocks](/blocks) or [JavaScript](/javascript)
+
+You can program the @boardname@ using [Blocks](/blocks) or [JavaScript](/javascript) in your web browser:
+
+```block
+input.buttonA.onEvent(ButtonEvent.Click, () => {
+    light.showRing(`blue blue blue blue blue blue blue blue blue blue`)
+})
+```
+```typescript
+input.buttonA.onEvent(ButtonEvent.Click, () => {
+    light.showRing(`blue blue blue blue blue blue blue blue blue blue`)
+})
+```
+
+The editor work in [most modern browsers](/browsers), work [offline](/offline) once loaded and do not require any installation. 
+
+## [Compile and Flash: Your Program!](/device/usb)
+
+When you have your code ready, you connect your @boardname@ to a computer via a USB cable 
+**then press the reset button** so it appears as a mounted drive (named **CPLAYBOOT**). 
+
+Compilation to machine code from [Blocks](/blocks) or [JavaScript](/javascript) happens in the browser. You save the binary 
+program to a **.uf2** file, which you then copy to the **CPLAYBOOT** drive, which flashes the device with the new program.
+
+## Simulator: Test Your Code
+
+You can run your code using the micro:bit simulator, all within the confines of a web browser. 
+The simulator has support for the LED screen, buttons, as well as compass, accelerometer, and digital I/O pins.
+
+```sim
+loops.forever(() => {
+    light.pixels.showAnimation(light.animation(LightAnimation.Rainbow), 1000)
+})
+```
+
+```package
+light
+```