Update src/streamlit_app.py

src/streamlit_app.py

@@ -15,8 +15,28 @@ def main():
     st.title("⚖️ Multi-Criteria Decision Analysis (MCDA) Calculator")
     st.markdown("Compare products and alternatives using weighted criteria analysis")
     
-    # Sidebar for configuration
-    st.sidebar.header("📋 Configuration")
+    # Add info about the tool (removed Excel reference)
+    with st.expander("📖 About This Tool"):
+        st.write("""
+        **What is MCDA?**
+        Multi-Criteria Decision Analysis helps you make objective decisions when comparing 
+        products, services, or alternatives across multiple criteria.
+        
+        **How to use:**
+        1. Define your evaluation categories (Performance, Cost, Quality, etc.)
+        2. Add the products/options you want to compare
+        3. Adjust category weights based on importance
+        4. View rankings and detailed analysis
+        
+        **Features:**
+        • Interactive data entry with real-time editing
+        • Multiple aggregation methods (Weighted Sum, Geometric Mean, Penalty System)
+        • Export results as CSV or JSON
+        • Professional visualizations and analysis
+        """)
+    
+    # Go directly to manual interface
+    manual_interface()
 
 def manual_interface():
     """Handle manual data entry interface."""