Update app.py

app.py

@@ -270,32 +270,19 @@ graph TD
 
 def main():
     st.set_page_config(page_title="Densified Skill Tree", layout="wide")
-    st.title("Densified Skill Tree Overview")
-    st.markdown("---")
-    
-    st.header("Markdown Outlines")
     st.markdown(md_combined_outline)
     st.markdown(md_submodels_outline)
-    
-    st.markdown("---")
-    st.header("Mermaid Diagrams by Area")
     for area, mermaid_code in mermaid_areas.items():
         st.subheader(area)
         render_mermaid(mermaid_code, height=300)
-    
-    st.markdown("---")
-    st.header("Combined Overall Skill Tree Graph")
     render_mermaid(combined_mermaid, height=800)
-    
-    st.markdown("---")
+
     st.header("Glossary")
     st.markdown(md_glossary)
-    
-    st.markdown("---")
+
     st.header("Python Libraries Guide")
     st.markdown(md_python_libraries)
-    
-    st.markdown("---")
+
     st.header("JavaScript Libraries Guide")
     st.markdown(md_js_libraries)