Update README.md

README.md

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 This model is a fine-tuned version of [meta-llama/Llama-2-7b-chat-hf](https://huggingface.co/meta-llama/Llama-2-7b-chat-hf) on the samsum dataset.
 
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 ## Model description
 
-More information needed
+The model is a fine-tuned version of Llama-2-7b-chat-hf using int8 quantization and LoRA. By using this configuration, approximately 6% of parameters are trainable.
 
 ## Intended uses & limitations
 
-More information needed
+It is intended to improve the summarisation capacities of Llama 2 7B on dialogs, expecting to produce a concise brief.
+As it is trained on the dataset SamSum, the terms of use are limited to those of the non-commercial licence: CC BY-NC-ND 4.0
 
 ## Training and evaluation data