To turn section titles into links, enable the sectlinks attribute.
The default Asciidoctor stylesheet displays linked section titles with the same color and styles as unlinked section titles.
Add § to section titles
When the sectanchors attribute is enabled on a document, an anchor (empty link) is added before the section title.
The default Asciidoctor stylesheet renders the anchor as a section entity (§) that floats to the left of the section title.