Change menu items in the Haswell html bootstrap theme

I am using the Haswell bootstrap theme at http://chrisburchill.com/ . It sounds silly but I can’t change the menu items in the collapsible menu. I can’t find where these menu items are generated! I’ve pasted the code below and searched around the CSS but can find nowhere for these links

			<header id="nav-stick2" class="header header-1 header-side-menu fixed white transparent">
			  <div class="header-wrapper">
        <div class="container-m-30 clearfix">
          <div class="logo-row logo-hiding">