Made variables more modular

_includes/interests.html

@@ -1,10 +1,11 @@
-{% if site.data.data.sidebar.interests %}
+{% assign interests = site.data.data.sidebar.interests %}
+{% if interests %}
 <div class="interests-container container-block">
 
   <h2 class="container-block-title">Interests</h2>
 
   <ul class="list-unstyled interests-list">
-    {% for interest in site.data.data.sidebar.interests %}
+    {% for interest in interests %}
 
       {% if interest.link %}
       <li><a href="{{ interest.link }}">{{ interest.item }}</a></li>