add a guide topics system

app/templates/guides/guides_index.html

@@ -0,0 +1,19 @@
+{% extends 'base.html' %}
+{% block title %}guides{% endblock %}
+{% block content %}
+<div class="darkbg settings-container">
+  <h1 class="thread-title">Guides index</h1>
+  <ul>
+  {% for category in categories %}
+    <li>
+      <h2><a href="{{ url_for('guides.category_index', category=category )}}">{{ category | replace('-', ' ') | title }}</a></h2>
+      <ul>
+        {% for page in categories[category] %}
+          <li><a href="{{ page.url }}">{{ page.title }}</a></li>
+        {% endfor %}
+      </ul>
+    </li>
+  {% endfor %}
+  </ul>
+</div>
+{% endblock %}