Fix sidebar navigation links

Author: ndolphin-github

_includes/sidebar.html

@@ -2,33 +2,20 @@
   <div class="container sidebar-sticky">
     <div class="sidebar-about">
       <div class="sidebar-logo">
-        <img src="{{ site.baseurl }}public/logo.png" alt="{{ site.title }}" style="width: 100px; height: 100px; border-radius: 50%; margin-bottom: 15px;">
+        <img src="{{ site.baseurl }}/public/logo.png" alt="{{ site.title }}" style="width: 100px; height: 100px; border-radius: 50%; margin-bottom: 15px;">
       </div>
       <h1>
-        <a href="/">
+        <a href="{{ site.baseurl }}/">
           {{ site.title }}
         </a>
       </h1>
       <p class="lead">{{ site.description }}</p>
     </div>
 
     <nav class="sidebar-nav">
-      <a class="sidebar-nav-item{% if page.url == '/' %} active{% endif %}" href="/">Home</a>
-
-      {% comment %}
-        The code below dynamically generates a sidebar nav of pages with
-        `layout: page` in the front-matter. See readme for usage.
-      {% endcomment %}
-
-      {% assign pages_list = site.pages %}
-      {% for node in pages_list %}
-        {% if node.title != null %}
-          {% if node.layout == "page" %}
-            <a class="sidebar-nav-item{% if page.url == node.url %} active{% endif %}" href="{{ node.url }}">{{ node.title }}</a>
-          {% endif %}
-        {% endif %}
-      {% endfor %}
-
+      <a class="sidebar-nav-item{% if page.url == '/' %} active{% endif %}" href="{{ site.baseurl }}/">Home</a>
+      <a class="sidebar-nav-item{% if page.url == '/publications/' %} active{% endif %}" href="{{ site.baseurl }}/publications/">Publications</a>
+      <a class="sidebar-nav-item{% if page.url == '/research/' %} active{% endif %}" href="{{ site.baseurl }}/research/">Research</a>
     </nav>
 
     <p>&copy; {{ site.time | date: '%Y' }}. All rights reserved.</p>