Update app.py

app.py

@@ -124,7 +124,25 @@ with gr.Blocks(title="📚 Book Price Decider", theme=gr.themes.Soft()) as app:
 
         # ── Tab 3 : À propos ───────────────────────────────
         with gr.Tab("ℹ️ About"):
-            gr.Markdown("""
+    gr.Markdown("""
+## About this app
+
+This app is part of the **AI for Big Data Management** group project at ESCP Business School.
+
+### Pipeline
+1. **Real-world data** scraped from Books to Scrape
+2. **Synthetic data** generated to enrich with reviews & sales history
+3. **VADER sentiment analysis** on customer reviews
+4. **ARIMA forecasting** on sales time series
+5. **Rule-based pricing decisions** combining sentiment + sales volume
+6. **This Hugging Face app** as the final automation layer
+
+### Team — Group A4
+- Project Manager
+- Data Analyst
+- UX Designer(s)
+- Content Specialist
+""")
 ## About this app
 
 This app is part of the **AI for Big Data Management** group project at ESCP Business School.