PaperModX/layouts/partials/anchored_headings.html

<!-- formats .Content headings by adding an anchor -->
{{ . | replaceRE "(<h[1-6] id=\"([^\"]+)\".+)(</h[1-6]+>)" "${1}<a hidden class=\"anchor\" aria-hidden=\"true\" href=\"#${2}\">#</a>${3}" | safeHTML }}
	`<!-- formats .Content headings by adding an anchor -->`
	`{{ . \| replaceRE "(<h[1-6] id=\"([^\"]+)\".+)(</h[1-6]+>)" "${1}<a hidden class=\"anchor\" aria-hidden=\"true\" href=\"#${2}\">#</a>${3}" \| safeHTML }}`