Update README.md

Hi there! I just wanted to say that the model is absolutely fantastic. We would love to contribute by updating the README to include information about the base model. This would help address the current gap in the model card. Thank you!

README.md

@@ -204,6 +204,8 @@ extra_gated_fields:
 extra_gated_description: The information you provide will be collected, stored, processed
   and shared in accordance with the [Meta Privacy Policy](https://www.facebook.com/privacy/policy/).
 extra_gated_button_content: Submit
+base_model:
+- meta-llama/Llama-3.2-3B
 ---
 
 # mlx-community/Llama-3.2-3B-8bit