LIL-225. Add content blocks to lesson page

apps/course/templates/course/lesson.html

@@ -35,7 +35,16 @@
     </div>
   </div>
 </div>
-<div class="section section_gradient">
+{% for content in lesson.content.all %}
+<div class="section section_border">
+  <div class="section__center center center_sm">
+    {% with template="course/content/"|add:content.ctype|add:".html" %}
+    {% include template %}
+    {% endwith %}
+    </div>
+  </div>
+{% endfor %}
+{% comment %} <div class="section section_gradient">
   <div class="section__center center center_sm">
     <div class="title">Примеры техники</div>
     <div class="examples">
@@ -77,7 +86,7 @@
       </div>
     </div>
   </div>
-</div>
+</div> {% endcomment %}
 <div class="section section_gray">
   <div class="section__center center center_sm">
     <div class="title">Задавайте вопросы:</div>