Changes

NNUE layers in action <ref>Image courtesy Roman Zhukov, revised version of the image posted in [http://talkchess.com/forum3/viewtopic.php?f=2&t=74059&start=139 Re: Stockfish NN release (NNUE)] by Roman Zhukov, [[CCC]], June 17, 2020</ref>

All networks are built by some volunteers but not by any organized community (differs from [[Leela Chess Zero]]) nor Fishtest one. They can upload their networks into Fishtest for testing. Those networks will be released officially if they are good enough.