Secondary list items are considered to be nested inside of primary
list items which precede them.
-- If the paragraph begins with `‣` or `🔡`, it is a tertiary unordered
+- If the paragraph begins with `▪` or `🔡`, it is a tertiary unordered
or ordered list item (`<html:li class="unordered" data-level="3">`
or `<html:li class="ordered" data-level="3">`).
Tertiary list items are considered to be nested inside of primary