Documentation

[calebccff]

There is currently zero documentation in this repo, making any contributors go through a whole reverse engineering effort to add support for their device.

As a starting point, I think it would be helpful to at least include the following:

1. AudioReach background info (what/why/how?)
2. Links to kernel patch series introducing it (iirc they have some nice ASCII art graphs)
3. Binary format description + capabilities (what features aren't supported here?)
4. Explanation of repo structure (why m4? what do each of the include files do? how do they work? what are the .conf files for?)
5. Brief explanation of m4 syntax and/or links to some good learning resources (expect contributors who have never encountered m4 before)
6. Example run through section-by-section for typical laptop/mobile configuration (this could also be the place to describe the basic m4 syntax)
7. Guide for distro packaging
8. LICENSE file

[konradybcio]

Linking to this seems useful, too: https://github.com/Audioreach