Don't promote ornamental breaks to headers
The most common ornamental divider authors use is a series of asterisks, which may or may not be separated by spaces or tabs.
- "***"
- "*****"
- "* * *"
*<span class="tab"></span>*
Paragraphs containing only such a a pattern (with any number of spaces or tabs between asterisks) should be excluded from consideration for promotion to headings.