write about updated checkpoint

README.md

@@ -122,21 +122,27 @@ _NOTE: early checkpoints of this model were trained on a "smaller" subsection of
 
 ## Training procedure
 
+### Updates:
+
+- Added a new version on July 3, 2022, with several epochs of additional training that is more performant in general.
+
 ### Training hyperparameters
 
 The following hyperparameters were used during the **final** training round\*:
-- learning_rate: 0.0004
-- train_batch_size: 2
+
+- learning_rate: 0.001
+- train_batch_size: 1
 - eval_batch_size: 1
 - seed: 42
 - distributed_type: multi-GPU
 - gradient_accumulation_steps: 64
-- total_train_batch_size: 128
+- total_train_batch_size: 64
 - optimizer: Adam with betas=(0.9,0.999) and epsilon=1e-08
 - lr_scheduler_type: cosine
-- lr_scheduler_warmup_ratio: 0.02
+- lr_scheduler_warmup_ratio: 0.01
 - num_epochs: 2
 
+
 \*_Prior training sessions used roughly similar parameters; multiple sessions were required as this takes eons to train_
 
 ### Training results