What you should do, I think, is add group: navigation
to your yaml header of about.md
, and remained defalut navbar code unchanged. It put the about.md
to the navgation
group, {% assign group = 'navigation' %}
, this code tell use navgation
group generate navbar links
about.md
yaml header like this
---
layout: page
title: About
header : About
group: navigation
---