fixed lookout detail template's title tag

bookshare/lookouts/templates/detail_lookout.html

 {% extends 'layouts/base.html' %}
 
+{% load trades_extras %}
+
 {% block title %}
-SRCT Bookshare • Lookouts
+SRCT Bookshare • Lookouts • {{ lookout.isbn|isbn_name|title }}
 {% endblock %}
 
 {% block content %}
 
-{% load trades_extras %}
-
 <div class="page-header" id="banner">
   <div class="row">
     <div class="col-sm-12 text-center">