Update references after repo transfer to official-stockfish

Author: Sopel97

Diff for: scripts/easy_train.py

@@ -2035,7 +2035,7 @@ def parse_cli_args():
     )
     parser.add_argument(
         '--nnue-pytorch-branch',
-        default='glinscott/nnue-pytorch/master',
+        default='official-stockfish/nnue-pytorch/master',
         type=str,
         metavar='BRANCH_OR_COMMIT',
         dest='nnue_pytorch_branch',

Diff for: serialize.py

@@ -57,7 +57,7 @@ def decode_leb_128_array(arr, n):
 
 # hardcoded for now
 VERSION = 0x7AF32F20
-DEFAULT_DESCRIPTION = "Network trained with the https://github.com/glinscott/nnue-pytorch trainer."
+DEFAULT_DESCRIPTION = "Network trained with the https://github.com/official-stockfish/nnue-pytorch trainer."
 
 class NNUEWriter():
   """

Diff for: visualize.py

@@ -133,7 +133,7 @@ def plot_input_weights(self):
                 if default_order:
                     # Piece centric, but with flipped king position.
                     # Same order as used by https://github.com/hxim/Stockfish-Evaluation-Guide.
-                    # See also https://github.com/glinscott/nnue-pytorch/issues/42#issuecomment-753604393.
+                    # See also https://github.com/official-stockfish/nnue-pytorch/issues/42#issuecomment-753604393.
                     inpos = [[(7- kipos[0])   + pipos[0]   *8, kipos[1]+(7-pipos[1])*8],
                              [(7-(kipos[0]^7))+(pipos[0]^7)*8, kipos[1]+(7-pipos[1])*8]]
                     d = - 8 if piece < 2 else 48 + (piece // 2 - 1) * 64