Add supported targets matrix with a list of specific KAS files. #42
Description
Currently Zarhus Docs, though provide with the supported targets list, does not provide clear instructions how to build smth for the target (e.g. what KAS files to use). This causes guides reproducibility problems and bad user experience.
Because of this the Zarhus developers are starting to place their documentation in the code with the arguments like "the docs.zarhus.com are unstable because of bad versioning or reproduction". This could eventually cause docs.zarhus.com to be thrown away and forgotten.