Create a installation howto

[froscon2024]

The general user would have of course the most simple question at the moment: How can i install the released FOSS firmware on the badge?
This question should be answered on the main page. https://github.com/fossasia/badgemagic-firmware

At the moment its completely unanswered. I had to dig into the issues to get out of this issue report what have to be done now: #38

This repo at the same time did not tell what software to use to install the foss firmware. I had to search around in other repo to find some hints: https://github.com/fossasia/badgemagic-hardware?tab=readme-ov-file#platform

So it seem to be https://github.com/ch32-rs/wchisp

At the moment its currently not listed here: https://github.com/ch32-rs/wchisp?tab=readme-ov-file#tested-on
I plan to make a PR at https://github.com/ch32-rs/wchisp?tab=readme-ov-file#tested-on when i tested it myself.

[kienvo]

It's funny that I just thought the flashing guide had been already on this repo. Turns out that just a bootloader description

For flashing software, yes, it is wchisp. After installing wchisp and entering the bootloader, just run make isp. It will do the rest.

[froscon2024]

You released a .bin and a .elf file in version 0.1. Because of a missing howto, i just tried out the .bin and that seem to have worked.
The wchisp is capable of flashing both file types: https://github.com/ch32-rs/wchisp?tab=readme-ov-file#usage