Very long content several pages, including any link, like User:Suma. Templates are now very powerful and reliable. Even links with pipes can be written here like this. It is even possible to use other templates, like testing template
Section 2 Title
Very long content several pages, including links like User:Suma
Section 3 Title
Very long content several pages - version 3.
Testing bold and other features here, including math
No headlines can be given inline here. If you need headlines, you need to create a template and use it.