Add icon to links

_data/services.yaml

@@ -5,13 +5,16 @@
 #
 - title:    Blogs
   text:     lorem ipsum
+  icon:     rocket
   url:      http://wp.ffhh/
   network:  intern
 - title:    Radio
   text:     lorem ipsum
+  icon:     rocket
   url:      http://radio.ffhh/
   network:  intern
 - title:    Wiki
   text:     lorem ipsum
+  icon:     rocket
   url:      https://wiki.freifunk.net/Freifunk_Hamburg
   network:  public

index.html

@@ -6,7 +6,7 @@ layout: default
   <ul class="posts row">
     {% for service in site.data.services %}
       <li class="col-6 col-sm-6 col-lg-4">
-        <h2><a href="{{ service.url }}">{{ service.title }}</a></h2>
+        <h2><span class="fa fa-{{ service.icon }}"></span> <a href="{{ service.url }}">{{ service.title }}</a></h2>
         <p>{{ service.text }}</p>
       </li>
     {% endfor %}