Update README.md

README.md

@@ -13,6 +13,9 @@ We fine-tuned Llama2-7b-chat using LoRA. We used a batch size of 1 and a chunk s
 ## Training data:
 Please refer to Dataset card: https://huggingface.co/datasets/BrainGPT/train_valid_split_pmc_neuroscience_2002-2022_filtered_subset
 
+## Model weights:
+The current version of BrainGPT was fine-tuned on Llama-2-7b-chat-hf with LoRA, `adapter_model.bin` contains the LoRA adapter weights. To load and use the full model, you need to be granted access to Llama-2-7b-chat-hf via https://huggingface.co/meta-llama/Llama-2-7b-chat-hf. 
+
 ## Load and use model:
 ```python
 from peft import PeftModel, PeftConfig