Acknowledge fishtest authors

Explicitly acknowledge fishtest authors.
Their efforts are almost invisible, but essential for the project.

Many thanks to https://github.com/glinscott/fishtest/blob/master/AUTHORS !

No functional change.

diff --git a/AUTHORS b/AUTHORS
index e55f94fb5a9046b6a469cb1da21a86ba75bea893..455cf6ca62aa1bda2ed9dbd451a5f633d4bdfdd4 100644 (file)
--- a/AUTHORS
+++ b/AUTHORS
@@ -133,3 +133,7 @@ Tom Vijlbrief (tomtor)
 Torsten Franz (torfranz)
 Uri Blass (uriblass)
 Vince Negri
+
+# Additionally, we acknowledge the authors of fishtest,
+# an essential framework for the development of Stockfish:
+# https://github.com/glinscott/fishtest/blob/master/AUTHORS