Update index.html

Fix background image relation

Author: TheoTechnicguy

src/templates/index.html

@@ -4,7 +4,6 @@
 
 {% block head %}
   <link rel="stylesheet" href="{{ url_for('static', filename = 'css/index.css') }}">
-  <link rel="background-image" href="{{url_for('static', filename='img/bk.png')}}">
 {% endblock %}
 
 {% block corps %}