docs(README): expand contents

README.md

@@ -1,6 +1,6 @@
 ---
 title: Simple Calculator
-emoji: 🏢
+emoji: 🧮
 colorFrom: blue
 colorTo: indigo
 sdk: gradio
@@ -29,11 +29,24 @@ An MCP server providing a few helpful tools:
 
 The purpose of this space is mainly to test the (still very experimental) integration of an MCP server within [Microsoft Copilot Studio](https://www.microsoft.com/en-us/microsoft-copilot/microsoft-copilot-studio).
 
+## 🛠️ Built With
+
+- [Gradio MCP interface](https://www.gradio.app/guides/building-mcp-server-with-gradio)
+- [Hugging Face Spaces](https://huggingface.co/spaces)
+- [Modal.com](https://modal.com/) serverless compute platform
+
+<!-- - [Anthropic API](https://www.anthropic.com/api) -->
+<!-- - [Mistral API](https://docs.mistral.ai/api/) -->
+
 ## Team
 
 - [Gianpaolo Macario](https://huggingface.co/gmacario)
 - [Alessio Chessa](https://huggingface.co/aleche28)
 
+## 📹 Demonstration
+
+[This Hugging Face space](https://huggingface.co/spaces/gmacario/test-simple-calculator) actually uses this MCP server, demonstrating its usability.
+
 ### Demo video
 
 <!-- TODO: Update link to YouTube video when available -->