Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -1007,3 +1007,5 @@
 {"step": 20140, "tokens": 10559160320, "loss": 2.743351173400879, "tokens_per_second": 975515.970219282, "lr": 0.0015, "gradient_norm": 0.14357905089855194, "benchmark": false}
 {"step": 20160, "tokens": 10569646080, "loss": 2.7633874893188475, "tokens_per_second": 978432.818261292, "lr": 0.0015, "gradient_norm": 0.15365487337112427, "benchmark": false}
 {"step": 20180, "tokens": 10580131840, "loss": 2.7610193252563477, "tokens_per_second": 976707.4679605602, "lr": 0.0015, "gradient_norm": 0.14246156811714172, "benchmark": false}
+{"step": 20200, "tokens": 10590617600, "loss": 2.740561103820801, "tokens_per_second": 977446.473636771, "lr": 0.0015, "gradient_norm": 0.16009457409381866, "benchmark": false}
+{"step": 20220, "tokens": 10601103360, "loss": 2.720977783203125, "tokens_per_second": 974762.7170033227, "lr": 0.0015, "gradient_norm": 0.20825006067752838, "benchmark": false}