Update README with honest benchmark results and V1 comparison

V2 embedding model (federal + foundation) - vocab.json

V2 embedding model (federal + foundation) - training_config.json

V2 embedding model (federal + foundation) - tokenizer_config.json

V2 embedding model (federal + foundation) - tokenizer.json

V2 embedding model (federal + foundation) - special_tokens_map.json

V2 embedding model (federal + foundation) - sentence_bert_config.json

V2 embedding model (federal + foundation) - modules.json

V2 embedding model (federal + foundation) - merges.txt

V2 embedding model (federal + foundation) - config_sentence_transformers.json

V2 embedding model (federal + foundation) - chat_template.jinja

V2 embedding model (federal + foundation) - added_tokens.json

V2 embedding model (federal + foundation) - adapter_model.safetensors

V2 embedding model (federal + foundation) - adapter_config.json

V2 embedding model (federal + foundation) - README.md

V2 embedding model (federal + foundation) - 1_Pooling/config.json

initial commit