gguf alignment-handbook generated_from_trainer text-generation dataset:HuggingFaceH4/ultrafeedback_binarized dataset:HuggingFaceH4/orca_dpo_pairs base_model:HuggingFaceH4/starchat2-15b-sft-v0.1 base_model:quantized:HuggingFaceH4/starchat2-15b-sft-v0.1 endpoints_compatible region:us conversational