Support adding content after "about" section (#994)

John Feminella

05.32.2026 3d3bbd75d7bb46a4670af89442cf0b961440bd4e

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<a href="{{ .Destination | safeURL }}"{{ with .Title}} title="{{ . }}"{{ end }} {{ if findRE "^(https?:)?//" (lower .Destination) }} class="external-link" target="_blank" rel="noopener"{{ end }}>{{ .Text | safeHTML }}</a>