docu: improved section heading

main.py

@@ -302,7 +302,7 @@ def documentation_page():
     menu = side_menu()
     ui.add_head_html('<style>html {scroll-behavior: auto;}</style>')
     with ui.column().classes('w-full p-8 lg:p-16 max-w-[1250px] mx-auto'):
-        section_heading('API Reference and Demos', '*NiceGUI* Documentation')
+        section_heading('Reference, Demos and more', '*NiceGUI* Documentation')
         ui.markdown(
             'This is the documentation for NiceGUI >= 1.0. '
             'Documentation for older versions can be found at [https://0.9.nicegui.io/](https://0.9.nicegui.io/reference).'