fixed bug in edit book forms

rachpurisima_reading/bookshelf/templates/bookshelf/book_details.html

@@ -27,7 +27,7 @@ fundamental.<br>
   </ul>
 <br>
 <div class="text-center">
-  <form action="edit/{{ object.book.get_absolute_url }}">
+  <form action="edit">
     <input type="submit" value="Edit Book">
   </form>
 </div>