docs: add Hugging Face Spaces live demo link

- Add prominent 'Try It Live' section
- Include official HF Spaces badge
- Link to deployed Space at ayushm98/cascade

README.md

@@ -19,7 +19,12 @@ pinned: false
 [![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/psf/black)
 [![Ruff](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json)](https://github.com/astral-sh/ruff)
 [![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg)](CONTRIBUTING.md)
-[![Hugging Face Spaces](https://img.shields.io/badge/🤗%20Hugging%20Face-Spaces-blue)](https://huggingface.co/spaces)
+
+## 🚀 Try It Live
+
+[![Open in Spaces](https://huggingface.co/datasets/huggingface/badges/resolve/main/open-in-hf-spaces-sm-dark.svg)](https://huggingface.co/spaces/ayushm98/cascade)
+
+Experience Cascade's intelligent routing and cost optimization in action!
 
 ## Overview