arduino/language — reverse-engineered prompt

I want this repo to act like a simple, clear home base for the Arduino Language, not a full code library. Put together a polished landing page or README centered on what the Arduino Language is, why it matters for embedded programming across lots of boards, and where people should go next.

Make it easy for a newcomer to find the core API, the language reference, the official libraries, and the main discussion area for language evolution. I also want a friendly contribution section that explains how people can help, like spotting API inconsistencies across cores and libraries, improving the reference docs, and helping with unit test coverage. Add a short see also area for the sketch specification and coding style guide.

Keep the tone community focused and welcoming, like an official Arduino project page. If anything is outdated, look up the current Arduino docs and links online and use the best matching official resources.