feature: add course index

templates/html/chapter.html

@@ -10,7 +10,7 @@
 <nav aria-label="breadcrumb">
   <ol class="breadcrumb">
     <li class="breadcrumb-item"><a href="index.html">Home</a></li>
-    <li class="breadcrumb-item"><a href="{{ edition }}_course_index.html">Online-Kurs</a></li>
+    <li class="breadcrumb-item"><a href="{{ edition }}_course_index.html">{{ name }}</a></li>
     <li class="breadcrumb-item active" aria-current="page">{{ chapter["title"] }}</li>
   </ol>
 </nav>

templates/html/course_index.html

@@ -0,0 +1,9 @@
+<h1>{{ titel }}</h1>
+<p>{{ abstract }}</p>
+<div class="chapter-toc d-grid gap-2">
+    {% for chapter in book %}
+        <a class="btn btn-outline-primary btn-labeled" href="{{ chapter["ident"] }}.html">
+            <span class="btn-label">{{loop.index}}</span>{{ chapter["title"]}}
+        </a>
+    {% endfor %}
+</div>

templates/html/section.html

@@ -10,7 +10,7 @@
 <nav aria-label="breadcrumb">
   <ol class="breadcrumb">
     <li class="breadcrumb-item"><a href="index.html">Home</a></li>
-    <li class="breadcrumb-item"><a href="{{ edition }}_course_index.html">Online-Kurs</a></li>
+    <li class="breadcrumb-item"><a href="{{ edition }}_course_index.html">{{ name }}</a></li>
     <li class="breadcrumb-item"><a href="{{ edition }}_chapter_{{ chapter["ident"] }}.html">{{ chapter["title"] }}</a></li>
     <li class="breadcrumb-item active" aria-current="page">{{ section["title"] }}</li>
   </ol>