Update README.md

README.md

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-Psychology Alpaca is based on the LLaMA-7B language model, fine-tuned on 10K psychology prompts-and-answers. 
+# Psychology Alpaca 🍩
+This is a LLaMA-7B language model trained on 10.000 psychology-related prompts and answers generated by ChatGPT. The model was trained on a single A100 GPU from Google Colab. The model shows some knowledge in the field of psychology and generally performs better than its base model parent.
+
+### Background
+This model was developed as part of a thesis project in the field of machine learning and psychology. It was used as a base model for further fine-tuning using reinforcement learning. The goal of the thesis was to compare reinforcement learning from *human feedback* and *AI feedback*. When the paper is available, it will be linked here!
+
+
+**Authors:**
+Samuel Höglund, samhog@kth.se;
+Josef Khedri, jkhedri@kth.se