navbar primary fix

pages/_includes/layout/navbar-primary.html

 {% assign breakpoint = 'lg' %}
-<nav class="navbar navbar-expand-{{ breakpoint }} navbar-dark navbar-primary" id="navbar-primary">
+<nav class="navbar navbar-expand-{{ breakpoint }} navbar-primary" id="navbar-primary">
 	<div class="container">
 		{% include layout/navbar-logo.html class="d-none-navbar-horizontal" %}