update README

README.md

@@ -159,8 +159,8 @@ We look forward to your feedback and to collaborating with developers and resear
 
 ## How to Use
 
-- **MiniMax Agent**: Our general agent product, built on MiniMax-M2, is now publicly available and free for a limited time: https://agent.minimaxi.io/
+- **MiniMax Agent**: Our general agent product, built on MiniMax-M2, is now publicly available and free for a limited time: https://agent.minimaxi.com/
 
-- **MiniMax Open Platform**: https://www.minimaxi.io/
+- **MiniMax Open Platform**: https://www.minimaxi.com/
 
-- **MiniMax-M2 Model Weights**: The open-source model weights are available on Hugging Face: https://huggingface.co/MiniMaxAI/
+- **MiniMax-M2 Model Weights**: The open-source model weights are available on Hugging Face: https://huggingface.co/MiniMaxAI/