Update README.md

Update README.md

Update README.md

update model card with 5-dataset h2h results vs base, v2, ColBERTv2

add model.safetensors (stable network)

add training_meta.json (arm_vol hyperparameters)

add 1_Pooling/config.json

add tokenizer.json

add tokenizer_config.json

add config_sentence_transformers.json

add sentence_bert_config.json

add modules.json

fix: add BertModel config.json at root so SentenceTransformer can load

add model card

initial commit