fix extra space in the contributors list

views/home.html.twig

@@ -40,10 +40,10 @@
 <a href="https://github.com/{{ githubRepo }}"><i class="fa fa-github fa-4x" aria-hidden="true"></i></a>
     {% if contributors|length > 0 %}
         <h2>with the help of
-        {% for contributor in contributors %}
-            {% if loop.index0 < (loop.length - 1) and loop.index0 > 0 %}, {% elseif loop.index0 == (loop.length - 1) %} and {% endif %}
+        {% for contributor in contributors -%}
+            {%- if loop.index0 < (loop.length - 1) and loop.index0 > 0 %}, {% elseif loop.index0 == (loop.length - 1) %} and {% endif -%}
             <a href="{{ contributor.html_url }}">{{ contributor.login }}</a>
-        {% endfor %}
+        {%- endfor %}
         </h2>
     {% endif %}
 </div>