Update tokenizer, configuration and training reports

reports/run/metrics.jsonl

@@ -1033,3 +1033,5 @@
 {"step": 20660, "tokens": 10831790080, "loss": 2.751976203918457, "tokens_per_second": 942926.3424132457, "lr": 0.0015, "gradient_norm": 0.14769695699214935, "benchmark": false}
 {"step": 20680, "tokens": 10842275840, "loss": 2.7134735107421877, "tokens_per_second": 987092.7115713909, "lr": 0.0015, "gradient_norm": 0.21292518079280853, "benchmark": false}
 {"step": 20700, "tokens": 10852761600, "loss": 2.712258148193359, "tokens_per_second": 985639.3671655391, "lr": 0.0015, "gradient_norm": 0.14630071818828583, "benchmark": false}
+{"step": 20720, "tokens": 10863247360, "loss": 2.7553104400634765, "tokens_per_second": 976125.8297539846, "lr": 0.0015, "gradient_norm": 0.15526510775089264, "benchmark": false}
+{"step": 20740, "tokens": 10873733120, "loss": 2.7063453674316404, "tokens_per_second": 984479.200702056, "lr": 0.0015, "gradient_norm": 0.16980494558811188, "benchmark": false}