Small todos from the next dev cycle

[vondele]

Describe the issue

• [x] copy scripts directory in distributed packages
• [ ] see if avxvnni can be integrated in CI and in release packages
• [x] remove ARCH=... from readme (only advanced usage)
• [x] document the help and license commands and command line options (--help, --license)

Expected behavior

fix above todos.

Steps to reproduce

N/A

Anything else?

N/A

Operating system

All

Stockfish version

master

[Disservin]

Also check if this CI step is really required, https://github.com/official-stockfish/Stockfish/blob/master/.github/workflows/upload_binaries.yml#L40. I have a feeling that the runner already has git and zip, and make shouldnt even be needed.

[Disservin]

Rename the binary stockfish-macos-m1-apple-silicon to just stockfish-macos-apple-silicon since it should support all later processors as well

[vondele]

Rename the binary stockfish-macos-m1-apple-silicon to just stockfish-macos-apple-silicon since it should support all later processors as well

though if we start adding m2, m3 specific optimizations?

[Disservin]

mh fair enough, I guess it should be clear enough that a m1 optimized version will/should also run on all m series chips

[cw-sf]

README.md states "a file with the .nnue extension, storing the neural network for the NNUE evaluation. Binary distributions will have this file embedded.", however my understanding is that Stockfish currently includes a secondary neural network, thus two files.

Also, as spelling change suggestions: the CPW refers to itself as "Chess Programming Wiki" and the big endian architecture is spelled "PowerPC".

Should a separate PR be created for this? If at all, that is.

[Disservin]

I've added the help and license to https://github.com/official-stockfish/Stockfish/wiki/UCI-&-Commands#help.