add intro for generation

app.py

@@ -95,6 +95,7 @@ read_markdown("evaluation/demo_humaneval.txt")
 
 # Code generation
 st.subheader("4 - Code generation ✨")
+read_markdown("generation/intro.txt")
 col1, col2, col3 = st.columns([7, 1, 6])
 with col1:
     st.markdown("**Models**")