Fix social urls in school promo

apps/school/templates/blocks/promo.html

@@ -54,22 +54,22 @@
     </div>
   </div>
   <div class="main__socials">
-    <a class="main__social" href="#">
+    <a class="main__social" href="{{ config.SERVICE_INSTAGRAM_URL }}">
       <svg class="icon icon-instagram">
         <use xlink:href="{% static 'img/sprite.svg' %}#icon-instagram"></use>
       </svg>
     </a>
-    <a class="main__social" href="#">
+    <a class="main__social" href="{{ config.SERVICE_TWITTER_URL }}">
       <svg class="icon icon-twitter">
         <use xlink:href="{% static 'img/sprite.svg' %}#icon-twitter"></use>
       </svg>
     </a>
-    <a class="main__social" href="#">
+    <a class="main__social" href="{{ config.SERVICE_FB_URL }}">
       <svg class="icon icon-fb">
         <use xlink:href="{% static 'img/sprite.svg' %}#icon-fb"></use>
       </svg>
     </a>
-    <a class="main__social" href="#">
+    <a class="main__social" href="{{ config.SERVICE_YOUTUBE_URL }}">
       <svg class="icon icon-youtube">
         <use xlink:href="{% static 'img/sprite.svg' %}#icon-youtube"></use>
       </svg>