feat: Add rules

src/fellchensammlung/templates/fellchensammlung/about.html

@@ -2,6 +2,6 @@
 {% load i18n %}
 
 {% block content %}
-      <h1>{{ markdown_content.title }}</h1>
-      <p>{{ markdown_content.content|safe }}</p>
+    <h1>Rules</h1>
+    {% include "fellchensammlung/list-rules.html" %}
 {% endblock %}

src/fellchensammlung/templates/fellchensammlung/list-rules.html

@@ -0,0 +1,5 @@
+<div class="list-rules">
+{% for rule in rules %}
+    {% include "fellchensammlung/partial-rule.html" %}
+{% endfor %}
+</div>

src/fellchensammlung/templates/fellchensammlung/partial-rule.html

@@ -0,0 +1,3 @@
+{% load custom_tags %}
+<h2>{{ rule.title }}</h2>
+<p>{{ rule.rule_text | render_markdown }}</p>