Do not parse HTML

Might allow an attacker (in this case someone creating a course in TISS)
to do some nasty HTML injection. But eeeh, who cares? ¯\_(ツ)_/¯

app/views/crawlers/projects_crawler/show_detail.html.erb

@@ -4,11 +4,11 @@
   <%= button_to 'Add to favorites', action: :add_to_fav, id: @id, title: @project['titleDe'] %>
   <% if @project['abstractDe'] != nil %>
     <h4>Beschreibung</h4>
-    <p><%= @project['abstractDe'] %></p>
+    <p><%= raw @project['abstractDe'] %></p>
   <% else %>
     <% if @project['abstractEn'] != nil %>
       <h4>Beschreibung</h4>
-      <p><%= @project['abstractEn'] %></p>
+      <p><%= raw @project['abstractEn'] %></p>
     <% end %>
   <% end %>
 <% end %>