Update README.md

README.md

@@ -14,4 +14,4 @@ For more details please refer to the original github repo: https://github.com/Fl
 
 # BGE-M3 ([paper](https://arxiv.org/pdf/2402.03216.pdf), [code](https://github.com/FlagOpen/FlagEmbedding/tree/master/FlagEmbedding/BGE_M3))
 
-This is just the original model with O2 optimization. [Hub](https://huggingface.co/BAAI/bge-m3)
+This is just the original model in ONNX format. [Hub](https://huggingface.co/BAAI/bge-m3)