docs: capitalization

mega -> MEGA

Author: urish

README.md

@@ -26,7 +26,7 @@ A step-by-step video tutorial showing how to build a simple Arduino simulator us
 * [LED PWM](https://stackblitz.com/edit/avr8js-pwm?file=index.ts)
 * [Serial Monitor](https://stackblitz.com/edit/avr8js-serial?file=index.ts)
 * [NeoPixel Matrix](https://stackblitz.com/edit/avr8js-ws2812?file=index.ts)
-* [Arduino Mega NeoPixel Matrix](https://stackblitz.com/edit/avr8js-mega-ws2812?file=index.ts)
+* [Arduino MEGA NeoPixel Matrix](https://stackblitz.com/edit/avr8js-mega-ws2812?file=index.ts)
 * [Simon Game](https://stackblitz.com/edit/avr8js-simon-game?file=index.ts) - with pushbuttons and sound
 * [XMAS LEDs](https://stackblitz.com/edit/avr8js-xmas-dafna?file=index.ts)
 * [ATtiny85 Simulation](https://avr8js-attiny85.stackblitz.io?file=index.ts)
@@ -50,4 +50,4 @@ For more information, please check the [Contributing Guide](CONTRIBUTING.md).
 
 ## License
 
-Copyright (C) 2019, 2020 Uri Shaked. The code is released under the terms of the MIT license.
+Copyright (C) 2019, 2020 Uri Shaked. The code is released under the terms of the MIT license.