Changes

* [[Andrew Grant]] ('''2020'''). ''Evaluation & Tuning in Chess Engines''. [https://github.com/AndyGrant/Ethereal/blob/master/Tuning.pdf pdf] <ref>[http://www.talkchess.com/forum3/viewtopic.php?f=7&t=74877 Evaluation & Tuning in Chess Engines] by [[Andrew Grant]], [[CCC]], August 24, 2020 </ref> <ref>[http://www.talkchess.com/forum3/viewtopic.php?f=7&t=75350 Ethereal Tuning - Data Dump] by [[Andrew Grant]], [[CCC]], October 10, 2020</ref>