docs(zoo_performances): update VWW performances

The VWW model and training pipeline have been revisited and aligned with TinyML.

doc/zoo_performances.rst

@@ -189,7 +189,7 @@ Classification
 +------------------+------------+--------------------+--------------+----------------+-------------+---------+-----------+-----+----------------+
 | AkidaNet 0.5     | 224        | CIFAR10            | 8/4/4        | 92.89%         |             | 896K    | 829.3     | 33  | |an_c10_dl|    |
 +------------------+------------+--------------------+--------------+----------------+-------------+---------+-----------+-----+----------------+
-| AkidaNet 0.25    | 96         | Visual Wake Words  | 8/4/4        | 82.75%         |             | 288K    | 227.7     | 17  | |vww_dl|       |
+| AkidaNet 0.25    | 96         | Visual Wake Words  | 8/4/4        | 84.77%         |             | 229K    | 179.2     | 16  | |vww_dl|       |
 +------------------+------------+--------------------+--------------+----------------+-------------+---------+-----------+-----+----------------+
 | MobileNetV1 0.25 | 160        | ImageNet           | 8/4/4        | 40.86%         |             | 467K    | 365.4     | 23  | |mb_160_25_dl| |
 +------------------+------------+--------------------+--------------+----------------+-------------+---------+-----------+-----+----------------+